add and update samples for CUDA 11.5

This commit is contained in:
Rutwik Choughule
2021-10-21 16:34:49 +05:30
parent 3342d604fe
commit 1f76a2d110
2796 changed files with 1511725 additions and 827 deletions

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{
"configurations": [
{
"name": "Linux",
"includePath": [
"${workspaceFolder}/**",
"${workspaceFolder}/../../Common"
],
"defines": [],
"compilerPath": "/usr/local/cuda/bin/nvcc",
"cStandard": "gnu17",
"cppStandard": "gnu++14",
"intelliSenseMode": "linux-gcc-x64",
"configurationProvider": "ms-vscode.makefile-tools"
}
],
"version": 4
}

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{
"recommendations": [
"nvidia.nsight-vscode-edition",
"ms-vscode.cpptools",
"ms-vscode.makefile-tools"
]
}

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Samples/randomFog/.vscode/launch.json vendored Normal file
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{
"configurations": [
{
"name": "CUDA C++: Launch",
"type": "cuda-gdb",
"request": "launch",
"program": "${workspaceFolder}/randomFog"
}
]
}

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Samples/randomFog/.vscode/tasks.json vendored Normal file
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{
"version": "2.0.0",
"tasks": [
{
"label": "sample",
"type": "shell",
"command": "make dbg=1",
"problemMatcher": ["$nvcc"],
"group": {
"kind": "build",
"isDefault": true
}
}
]
}

383
Samples/randomFog/Makefile Normal file
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################################################################################
# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of NVIDIA CORPORATION nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
################################################################################
#
# Makefile project only supported on Mac OS X and Linux Platforms)
#
################################################################################
# Location of the CUDA Toolkit
CUDA_PATH ?= /usr/local/cuda
##############################
# start deprecated interface #
##############################
ifeq ($(x86_64),1)
$(info WARNING - x86_64 variable has been deprecated)
$(info WARNING - please use TARGET_ARCH=x86_64 instead)
TARGET_ARCH ?= x86_64
endif
ifeq ($(ARMv7),1)
$(info WARNING - ARMv7 variable has been deprecated)
$(info WARNING - please use TARGET_ARCH=armv7l instead)
TARGET_ARCH ?= armv7l
endif
ifeq ($(aarch64),1)
$(info WARNING - aarch64 variable has been deprecated)
$(info WARNING - please use TARGET_ARCH=aarch64 instead)
TARGET_ARCH ?= aarch64
endif
ifeq ($(ppc64le),1)
$(info WARNING - ppc64le variable has been deprecated)
$(info WARNING - please use TARGET_ARCH=ppc64le instead)
TARGET_ARCH ?= ppc64le
endif
ifneq ($(GCC),)
$(info WARNING - GCC variable has been deprecated)
$(info WARNING - please use HOST_COMPILER=$(GCC) instead)
HOST_COMPILER ?= $(GCC)
endif
ifneq ($(abi),)
$(error ERROR - abi variable has been removed)
endif
############################
# end deprecated interface #
############################
# architecture
HOST_ARCH := $(shell uname -m)
TARGET_ARCH ?= $(HOST_ARCH)
ifneq (,$(filter $(TARGET_ARCH),x86_64 aarch64 sbsa ppc64le armv7l))
ifneq ($(TARGET_ARCH),$(HOST_ARCH))
ifneq (,$(filter $(TARGET_ARCH),x86_64 aarch64 sbsa ppc64le))
TARGET_SIZE := 64
else ifneq (,$(filter $(TARGET_ARCH),armv7l))
TARGET_SIZE := 32
endif
else
TARGET_SIZE := $(shell getconf LONG_BIT)
endif
else
$(error ERROR - unsupported value $(TARGET_ARCH) for TARGET_ARCH!)
endif
# sbsa and aarch64 systems look similar. Need to differentiate them at host level for now.
ifeq ($(HOST_ARCH),aarch64)
ifeq ($(CUDA_PATH)/targets/sbsa-linux,$(shell ls -1d $(CUDA_PATH)/targets/sbsa-linux 2>/dev/null))
HOST_ARCH := sbsa
TARGET_ARCH := sbsa
endif
endif
ifneq ($(TARGET_ARCH),$(HOST_ARCH))
ifeq (,$(filter $(HOST_ARCH)-$(TARGET_ARCH),aarch64-armv7l x86_64-armv7l x86_64-aarch64 x86_64-sbsa x86_64-ppc64le))
$(error ERROR - cross compiling from $(HOST_ARCH) to $(TARGET_ARCH) is not supported!)
endif
endif
# When on native aarch64 system with userspace of 32-bit, change TARGET_ARCH to armv7l
ifeq ($(HOST_ARCH)-$(TARGET_ARCH)-$(TARGET_SIZE),aarch64-aarch64-32)
TARGET_ARCH = armv7l
endif
# operating system
HOST_OS := $(shell uname -s 2>/dev/null | tr "[:upper:]" "[:lower:]")
TARGET_OS ?= $(HOST_OS)
ifeq (,$(filter $(TARGET_OS),linux darwin qnx android))
$(error ERROR - unsupported value $(TARGET_OS) for TARGET_OS!)
endif
# host compiler
ifeq ($(TARGET_OS),darwin)
ifeq ($(shell expr `xcodebuild -version | grep -i xcode | awk '{print $$2}' | cut -d'.' -f1` \>= 5),1)
HOST_COMPILER ?= clang++
endif
else ifneq ($(TARGET_ARCH),$(HOST_ARCH))
ifeq ($(HOST_ARCH)-$(TARGET_ARCH),x86_64-armv7l)
ifeq ($(TARGET_OS),linux)
HOST_COMPILER ?= arm-linux-gnueabihf-g++
else ifeq ($(TARGET_OS),qnx)
ifeq ($(QNX_HOST),)
$(error ERROR - QNX_HOST must be passed to the QNX host toolchain)
endif
ifeq ($(QNX_TARGET),)
$(error ERROR - QNX_TARGET must be passed to the QNX target toolchain)
endif
export QNX_HOST
export QNX_TARGET
HOST_COMPILER ?= $(QNX_HOST)/usr/bin/arm-unknown-nto-qnx6.6.0eabi-g++
else ifeq ($(TARGET_OS),android)
HOST_COMPILER ?= arm-linux-androideabi-g++
endif
else ifeq ($(TARGET_ARCH),aarch64)
ifeq ($(TARGET_OS), linux)
HOST_COMPILER ?= aarch64-linux-gnu-g++
else ifeq ($(TARGET_OS),qnx)
ifeq ($(QNX_HOST),)
$(error ERROR - QNX_HOST must be passed to the QNX host toolchain)
endif
ifeq ($(QNX_TARGET),)
$(error ERROR - QNX_TARGET must be passed to the QNX target toolchain)
endif
export QNX_HOST
export QNX_TARGET
HOST_COMPILER ?= $(QNX_HOST)/usr/bin/q++
else ifeq ($(TARGET_OS), android)
HOST_COMPILER ?= aarch64-linux-android-clang++
endif
else ifeq ($(TARGET_ARCH),sbsa)
HOST_COMPILER ?= aarch64-linux-gnu-g++
else ifeq ($(TARGET_ARCH),ppc64le)
HOST_COMPILER ?= powerpc64le-linux-gnu-g++
endif
endif
HOST_COMPILER ?= g++
NVCC := $(CUDA_PATH)/bin/nvcc -ccbin $(HOST_COMPILER)
# internal flags
NVCCFLAGS := -m${TARGET_SIZE}
CCFLAGS :=
LDFLAGS :=
# build flags
ifeq ($(TARGET_OS),darwin)
LDFLAGS += -rpath $(CUDA_PATH)/lib
CCFLAGS += -arch $(HOST_ARCH)
else ifeq ($(HOST_ARCH)-$(TARGET_ARCH)-$(TARGET_OS),x86_64-armv7l-linux)
LDFLAGS += --dynamic-linker=/lib/ld-linux-armhf.so.3
CCFLAGS += -mfloat-abi=hard
else ifeq ($(TARGET_OS),android)
LDFLAGS += -pie
CCFLAGS += -fpie -fpic -fexceptions
endif
ifneq ($(TARGET_ARCH),$(HOST_ARCH))
ifeq ($(TARGET_ARCH)-$(TARGET_OS),armv7l-linux)
ifneq ($(TARGET_FS),)
GCCVERSIONLTEQ46 := $(shell expr `$(HOST_COMPILER) -dumpversion` \<= 4.6)
ifeq ($(GCCVERSIONLTEQ46),1)
CCFLAGS += --sysroot=$(TARGET_FS)
endif
LDFLAGS += --sysroot=$(TARGET_FS)
LDFLAGS += -rpath-link=$(TARGET_FS)/lib
LDFLAGS += -rpath-link=$(TARGET_FS)/usr/lib
LDFLAGS += -rpath-link=$(TARGET_FS)/usr/lib/arm-linux-gnueabihf
endif
endif
ifeq ($(TARGET_ARCH)-$(TARGET_OS),aarch64-linux)
ifneq ($(TARGET_FS),)
GCCVERSIONLTEQ46 := $(shell expr `$(HOST_COMPILER) -dumpversion` \<= 4.6)
ifeq ($(GCCVERSIONLTEQ46),1)
CCFLAGS += --sysroot=$(TARGET_FS)
endif
LDFLAGS += --sysroot=$(TARGET_FS)
LDFLAGS += -rpath-link=$(TARGET_FS)/lib -L$(TARGET_FS)/lib
LDFLAGS += -rpath-link=$(TARGET_FS)/lib/aarch64-linux-gnu -L$(TARGET_FS)/lib/aarch64-linux-gnu
LDFLAGS += -rpath-link=$(TARGET_FS)/usr/lib -L$(TARGET_FS)/usr/lib
LDFLAGS += -rpath-link=$(TARGET_FS)/usr/lib/aarch64-linux-gnu -L$(TARGET_FS)/usr/lib/aarch64-linux-gnu
LDFLAGS += --unresolved-symbols=ignore-in-shared-libs
CCFLAGS += -isystem=$(TARGET_FS)/usr/include -I$(TARGET_FS)/usr/include -I$(TARGET_FS)/usr/include/libdrm
CCFLAGS += -isystem=$(TARGET_FS)/usr/include/aarch64-linux-gnu -I$(TARGET_FS)/usr/include/aarch64-linux-gnu
endif
endif
ifeq ($(TARGET_ARCH)-$(TARGET_OS),aarch64-qnx)
NVCCFLAGS += --qpp-config 5.4.0,gcc_ntoaarch64le
CCFLAGS += -DWIN_INTERFACE_CUSTOM -I/usr/include/aarch64-qnx-gnu
LDFLAGS += -lsocket
LDFLAGS += -L/usr/lib/aarch64-qnx-gnu
CCFLAGS += "-Wl\,-rpath-link\,/usr/lib/aarch64-qnx-gnu"
ifdef TARGET_OVERRIDE
LDFLAGS += -lslog2
endif
ifneq ($(TARGET_FS),)
LDFLAGS += -L$(TARGET_FS)/usr/lib
CCFLAGS += "-Wl\,-rpath-link\,$(TARGET_FS)/usr/lib"
LDFLAGS += -L$(TARGET_FS)/usr/libnvidia
CCFLAGS += "-Wl\,-rpath-link\,$(TARGET_FS)/usr/libnvidia"
CCFLAGS += -I$(TARGET_FS)/../include
endif
endif
endif
ifdef TARGET_OVERRIDE # cuda toolkit targets override
NVCCFLAGS += -target-dir $(TARGET_OVERRIDE)
endif
# Install directory of different arch
CUDA_INSTALL_TARGET_DIR :=
ifeq ($(TARGET_ARCH)-$(TARGET_OS),armv7l-linux)
CUDA_INSTALL_TARGET_DIR = targets/armv7-linux-gnueabihf/
else ifeq ($(TARGET_ARCH)-$(TARGET_OS),aarch64-linux)
CUDA_INSTALL_TARGET_DIR = targets/aarch64-linux/
else ifeq ($(TARGET_ARCH)-$(TARGET_OS),sbsa-linux)
CUDA_INSTALL_TARGET_DIR = targets/sbsa-linux/
else ifeq ($(TARGET_ARCH)-$(TARGET_OS),armv7l-android)
CUDA_INSTALL_TARGET_DIR = targets/armv7-linux-androideabi/
else ifeq ($(TARGET_ARCH)-$(TARGET_OS),aarch64-android)
CUDA_INSTALL_TARGET_DIR = targets/aarch64-linux-androideabi/
else ifeq ($(TARGET_ARCH)-$(TARGET_OS),armv7l-qnx)
CUDA_INSTALL_TARGET_DIR = targets/ARMv7-linux-QNX/
else ifeq ($(TARGET_ARCH)-$(TARGET_OS),aarch64-qnx)
CUDA_INSTALL_TARGET_DIR = targets/aarch64-qnx/
else ifeq ($(TARGET_ARCH),ppc64le)
CUDA_INSTALL_TARGET_DIR = targets/ppc64le-linux/
endif
# Debug build flags
ifeq ($(dbg),1)
NVCCFLAGS += -g -G
BUILD_TYPE := debug
else
BUILD_TYPE := release
endif
ALL_CCFLAGS :=
ALL_CCFLAGS += $(NVCCFLAGS)
ALL_CCFLAGS += $(EXTRA_NVCCFLAGS)
ALL_CCFLAGS += $(addprefix -Xcompiler ,$(CCFLAGS))
ALL_CCFLAGS += $(addprefix -Xcompiler ,$(EXTRA_CCFLAGS))
SAMPLE_ENABLED := 1
# This sample is not supported on QNX
ifeq ($(TARGET_OS),qnx)
$(info >>> WARNING - randomFog is not supported on QNX - waiving sample <<<)
SAMPLE_ENABLED := 0
endif
ALL_LDFLAGS :=
ALL_LDFLAGS += $(ALL_CCFLAGS)
ALL_LDFLAGS += $(addprefix -Xlinker ,$(LDFLAGS))
ALL_LDFLAGS += $(addprefix -Xlinker ,$(EXTRA_LDFLAGS))
# Common includes and paths for CUDA
INCLUDES := -I../../Common
LIBRARIES :=
################################################################################
# Makefile include to help find GL Libraries
include ./findgllib.mk
# OpenGL specific libraries
ifeq ($(TARGET_OS),darwin)
# Mac OSX specific libraries and paths to include
LIBRARIES += -L/System/Library/Frameworks/OpenGL.framework/Libraries
LIBRARIES += -lGL -lGLU
ALL_LDFLAGS += -Xlinker -framework -Xlinker GLUT
else
LIBRARIES += $(GLLINK)
LIBRARIES += -lGL -lGLU -lglut
endif
#Detect if installed version of GCC supports required C++11
ifeq ($(TARGET_OS),linux)
empty :=
space := $(empty) $(empty)
GCCVERSIONSTRING := $(shell expr `$(HOST_COMPILER) -dumpversion`)
#Create version number without "."
GCCVERSION := $(shell expr `echo $(GCCVERSIONSTRING)` | cut -f1 -d.)
GCCVERSION += $(shell expr `echo $(GCCVERSIONSTRING)` | cut -f2 -d.)
GCCVERSION += $(shell expr `echo $(GCCVERSIONSTRING)` | cut -f3 -d.)
# Make sure the version number has at least 3 decimals
GCCVERSION += 00
# Remove spaces from the version number
GCCVERSION := $(subst $(space),$(empty),$(GCCVERSION))
#$(warning $(GCCVERSION))
IS_MIN_VERSION := $(shell expr `echo $(GCCVERSION)` \>= 51000)
ifeq ($(IS_MIN_VERSION), 1)
$(info >>> GCC Version is greater or equal to 5.1.0 <<<)
else
$(info >>> Waiving build. Minimum GCC version required is 5.1.0<<<)
SAMPLE_ENABLED := 0
endif
endif
# Gencode arguments
SMS ?=
ifeq ($(GENCODE_FLAGS),)
# Generate SASS code for each SM architecture listed in $(SMS)
$(foreach sm,$(SMS),$(eval GENCODE_FLAGS += -gencode arch=compute_$(sm),code=sm_$(sm)))
ifeq ($(SMS),)
# Generate PTX code from SM 35
GENCODE_FLAGS += -gencode arch=compute_35,code=compute_35
endif
# Generate PTX code from the highest SM architecture in $(SMS) to guarantee forward-compatibility
HIGHEST_SM := $(lastword $(sort $(SMS)))
ifneq ($(HIGHEST_SM),)
GENCODE_FLAGS += -gencode arch=compute_$(HIGHEST_SM),code=compute_$(HIGHEST_SM)
endif
endif
ALL_CCFLAGS += -Xcompiler -fpermissive --threads 0 --std=c++11
LIBRARIES += -lcurand
ifeq ($(SAMPLE_ENABLED),0)
EXEC ?= @echo "[@]"
endif
################################################################################
# Target rules
all: build
build: randomFog
check.deps:
ifeq ($(SAMPLE_ENABLED),0)
@echo "Sample will be waived due to the above missing dependencies"
else
@echo "Sample is ready - all dependencies have been met"
endif
randomFog.o:randomFog.cpp
$(EXEC) $(NVCC) $(INCLUDES) $(ALL_CCFLAGS) $(GENCODE_FLAGS) -o $@ -c $<
rng.o:rng.cpp
$(EXEC) $(NVCC) $(INCLUDES) $(ALL_CCFLAGS) $(GENCODE_FLAGS) -o $@ -c $<
randomFog: randomFog.o rng.o
$(EXEC) $(NVCC) $(ALL_LDFLAGS) $(GENCODE_FLAGS) -o $@ $+ $(LIBRARIES)
$(EXEC) mkdir -p ../../bin/$(TARGET_ARCH)/$(TARGET_OS)/$(BUILD_TYPE)
$(EXEC) cp $@ ../../bin/$(TARGET_ARCH)/$(TARGET_OS)/$(BUILD_TYPE)
run: build
$(EXEC) ./randomFog
clean:
rm -f randomFog randomFog.o rng.o
rm -rf ../../bin/$(TARGET_ARCH)/$(TARGET_OS)/$(BUILD_TYPE)/randomFog
clobber: clean

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE entry SYSTEM "SamplesInfo.dtd">
<entry>
<name>randomFog</name>
<cflags>
<flag>-Xcompiler -fpermissive</flag>
</cflags>
<description><![CDATA[This sample illustrates pseudo- and quasi- random numbers produced by CURAND.]]></description>
<devicecompilation>whole</devicecompilation>
<fallback_min_ptx>true</fallback_min_ptx>
<files>
<file>data\ref_randomFog.bin</file>
</files>
<includepaths>
<path>./</path>
<path>../</path>
<path>../../Common</path>
</includepaths>
<keyconcepts>
<concept level="basic">3D Graphics</concept>
<concept level="basic">CURAND Library</concept>
</keyconcepts>
<keywords>
<keyword>CUDA</keyword>
<keyword>CURAND</keyword>
<keyword>GPGPU</keyword>
<keyword>rng</keyword>
<keyword>prng</keyword>
<keyword>qrng</keyword>
<keyword>random number</keyword>
<keyword>openGL</keyword>
</keywords>
<libraries>
<library>curand</library>
<library>GLU</library>
<library>GL</library>
<library framework="true" os="macosx">GLUT</library>
<library os="linux">GLEW</library>
<library os="linux">glut</library>
<library os="linux">X11</library>
</libraries>
<librarypaths>
<path arch="x86_64" os="linux">../../common/lib/linux/x86_64</path>
<path arch="armv7l" os="linux">../../common/lib/linux/armv7l</path>
<path os="macosx">../../common/lib/darwin</path>
</librarypaths>
<nsight_eclipse>true</nsight_eclipse>
<primary_file>randomFog.cpp</primary_file>
<qatests>
<qatest>-qatest</qatest>
</qatests>
<required_dependencies>
<dependency>X11</dependency>
<dependency>GL</dependency>
<dependency>CURAND</dependency>
</required_dependencies>
<scopes>
<scope>1:CUDA Basic Topics</scope>
</scopes>
<sm-arch>sm35</sm-arch>
<sm-arch>sm37</sm-arch>
<sm-arch>sm50</sm-arch>
<sm-arch>sm52</sm-arch>
<sm-arch>sm60</sm-arch>
<sm-arch>sm61</sm-arch>
<sm-arch>sm70</sm-arch>
<sm-arch>sm72</sm-arch>
<sm-arch>sm75</sm-arch>
<sm-arch>sm80</sm-arch>
<sm-arch>sm86</sm-arch>
<supported_envs>
<env>
<arch>x86_64</arch>
<platform>linux</platform>
</env>
<env>
<platform>windows7</platform>
</env>
<env>
<arch>x86_64</arch>
<platform>macosx</platform>
</env>
<env>
<arch>arm</arch>
</env>
</supported_envs>
<supported_sm_architectures>
<include>all</include>
</supported_sm_architectures>
<title>Random Fog</title>
<type>exe</type>
</entry>

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# randomFog - Random Fog
## Description
This sample illustrates pseudo- and quasi- random numbers produced by CURAND.
## Key Concepts
3D Graphics, CURAND Library
## Supported SM Architectures
[SM 3.5 ](https://developer.nvidia.com/cuda-gpus) [SM 3.7 ](https://developer.nvidia.com/cuda-gpus) [SM 5.0 ](https://developer.nvidia.com/cuda-gpus) [SM 5.2 ](https://developer.nvidia.com/cuda-gpus) [SM 6.0 ](https://developer.nvidia.com/cuda-gpus) [SM 6.1 ](https://developer.nvidia.com/cuda-gpus) [SM 7.0 ](https://developer.nvidia.com/cuda-gpus) [SM 7.2 ](https://developer.nvidia.com/cuda-gpus) [SM 7.5 ](https://developer.nvidia.com/cuda-gpus) [SM 8.0 ](https://developer.nvidia.com/cuda-gpus) [SM 8.6 ](https://developer.nvidia.com/cuda-gpus)
## Supported OSes
Linux, Windows
## Supported CPU Architecture
x86_64, armv7l
## CUDA APIs involved
## Dependencies needed to build/run
[X11](../../README.md#x11), [GL](../../README.md#gl), [CURAND](../../README.md#curand)
## Prerequisites
Download and install the [CUDA Toolkit 11.5](https://developer.nvidia.com/cuda-downloads) for your corresponding platform.
Make sure the dependencies mentioned in [Dependencies]() section above are installed.
## Build and Run
### Windows
The Windows samples are built using the Visual Studio IDE. Solution files (.sln) are provided for each supported version of Visual Studio, using the format:
```
*_vs<version>.sln - for Visual Studio <version>
```
Each individual sample has its own set of solution files in its directory:
To build/examine all the samples at once, the complete solution files should be used. To build/examine a single sample, the individual sample solution files should be used.
> **Note:** Some samples require that the Microsoft DirectX SDK (June 2010 or newer) be installed and that the VC++ directory paths are properly set up (**Tools > Options...**). Check DirectX Dependencies section for details."
### Linux
The Linux samples are built using makefiles. To use the makefiles, change the current directory to the sample directory you wish to build, and run make:
```
$ cd <sample_dir>
$ make
```
The samples makefiles can take advantage of certain options:
* **TARGET_ARCH=<arch>** - cross-compile targeting a specific architecture. Allowed architectures are x86_64, armv7l.
By default, TARGET_ARCH is set to HOST_ARCH. On a x86_64 machine, not setting TARGET_ARCH is the equivalent of setting TARGET_ARCH=x86_64.<br/>
`$ make TARGET_ARCH=x86_64` <br/> `$ make TARGET_ARCH=armv7l` <br/>
See [here](http://docs.nvidia.com/cuda/cuda-samples/index.html#cross-samples) for more details.
* **dbg=1** - build with debug symbols
```
$ make dbg=1
```
* **SMS="A B ..."** - override the SM architectures for which the sample will be built, where `"A B ..."` is a space-delimited list of SM architectures. For example, to generate SASS for SM 50 and SM 60, use `SMS="50 60"`.
```
$ make SMS="50 60"
```
* **HOST_COMPILER=<host_compiler>** - override the default g++ host compiler. See the [Linux Installation Guide](http://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#system-requirements) for a list of supported host compilers.
```
$ make HOST_COMPILER=g++
```
## References (for more details)

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################################################################################
# Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of NVIDIA CORPORATION nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
################################################################################
#
# findgllib.mk is used to find the necessary GL Libraries for specific distributions
# this is supported on Mac OSX and Linux Platforms
#
################################################################################
# Determine OS platform and unix distribution
ifeq ("$(TARGET_OS)","linux")
# first search lsb_release
DISTRO := $(shell lsb_release -i -s 2>/dev/null | tr "[:upper:]" "[:lower:]")
ifeq ("$(DISTRO)","")
# second search and parse /etc/issue
DISTRO := $(shell awk '{print $$1}' /etc/issue | tr -d "[:space:]" | sed -e "/^$$/d" | tr "[:upper:]" "[:lower:]")
# ensure data from /etc/issue is valid
ifeq (,$(filter $(DISTRO),ubuntu fedora red rhel centos suse))
DISTRO :=
endif
ifeq ("$(DISTRO)","")
# third, we can search in /etc/os-release or /etc/{distro}-release
DISTRO := $(shell awk '/ID/' /etc/*-release | sed 's/ID=//' | grep -v "VERSION" | grep -v "ID" | grep -v "DISTRIB")
endif
endif
endif
ifeq ("$(TARGET_OS)","linux")
# $(info) >> findgllib.mk -> LINUX path <<<)
# Each set of Linux Distros have different paths for where to find their OpenGL libraries reside
UBUNTU = $(shell echo $(DISTRO) | grep -i ubuntu >/dev/null 2>&1; echo $$?)
FEDORA = $(shell echo $(DISTRO) | grep -i fedora >/dev/null 2>&1; echo $$?)
RHEL = $(shell echo $(DISTRO) | grep -i 'red\|rhel' >/dev/null 2>&1; echo $$?)
CENTOS = $(shell echo $(DISTRO) | grep -i centos >/dev/null 2>&1; echo $$?)
SUSE = $(shell echo $(DISTRO) | grep -i 'suse\|sles' >/dev/null 2>&1; echo $$?)
ifeq ("$(UBUNTU)","0")
ifeq ($(HOST_ARCH)-$(TARGET_ARCH),x86_64-armv7l)
GLPATH := /usr/arm-linux-gnueabihf/lib
GLLINK := -L/usr/arm-linux-gnueabihf/lib
ifneq ($(TARGET_FS),)
GLPATH += $(TARGET_FS)/usr/lib/arm-linux-gnueabihf
GLLINK += -L$(TARGET_FS)/usr/lib/arm-linux-gnueabihf
endif
else ifeq ($(HOST_ARCH)-$(TARGET_ARCH),x86_64-aarch64)
GLPATH := /usr/aarch64-linux-gnu/lib
GLLINK := -L/usr/aarch64-linux-gnu/lib
ifneq ($(TARGET_FS),)
GLPATH += $(TARGET_FS)/usr/lib
GLPATH += $(TARGET_FS)/usr/lib/aarch64-linux-gnu
GLLINK += -L$(TARGET_FS)/usr/lib/aarch64-linux-gnu
endif
else ifeq ($(HOST_ARCH)-$(TARGET_ARCH),x86_64-ppc64le)
GLPATH := /usr/powerpc64le-linux-gnu/lib
GLLINK := -L/usr/powerpc64le-linux-gnu/lib
else
UBUNTU_PKG_NAME = $(shell which dpkg >/dev/null 2>&1 && dpkg -l 'nvidia-*' | grep '^ii' | awk '{print $$2}' | head -1)
ifneq ("$(UBUNTU_PKG_NAME)","")
GLPATH ?= /usr/lib/$(UBUNTU_PKG_NAME)
GLLINK ?= -L/usr/lib/$(UBUNTU_PKG_NAME)
endif
DFLT_PATH ?= /usr/lib
endif
endif
ifeq ("$(SUSE)","0")
GLPATH ?= /usr/X11R6/lib64
GLLINK ?= -L/usr/X11R6/lib64
DFLT_PATH ?= /usr/lib64
endif
ifeq ("$(FEDORA)","0")
GLPATH ?= /usr/lib64/nvidia
GLLINK ?= -L/usr/lib64/nvidia
DFLT_PATH ?= /usr/lib64
endif
ifeq ("$(RHEL)","0")
GLPATH ?= /usr/lib64/nvidia
GLLINK ?= -L/usr/lib64/nvidia
DFLT_PATH ?= /usr/lib64
endif
ifeq ("$(CENTOS)","0")
GLPATH ?= /usr/lib64/nvidia
GLLINK ?= -L/usr/lib64/nvidia
DFLT_PATH ?= /usr/lib64
endif
# find libGL, libGLU
GLLIB := $(shell find -L $(GLPATH) $(DFLT_PATH) -name libGL.so -print 2>/dev/null)
GLULIB := $(shell find -L $(GLPATH) $(DFLT_PATH) -name libGLU.so -print 2>/dev/null)
ifeq ("$(GLLIB)","")
$(info >>> WARNING - libGL.so not found, refer to CUDA Getting Started Guide for how to find and install them. <<<)
SAMPLE_ENABLED := 0
endif
ifeq ("$(GLULIB)","")
$(info >>> WARNING - libGLU.so not found, refer to CUDA Getting Started Guide for how to find and install them. <<<)
SAMPLE_ENABLED := 0
endif
HEADER_SEARCH_PATH ?= $(TARGET_FS)/usr/include
ifeq ($(HOST_ARCH)-$(TARGET_ARCH)-$(TARGET_OS),x86_64-armv7l-linux)
HEADER_SEARCH_PATH += /usr/arm-linux-gnueabihf/include
else ifeq ($(HOST_ARCH)-$(TARGET_ARCH)-$(TARGET_OS),x86_64-aarch64-linux)
HEADER_SEARCH_PATH += /usr/aarch64-linux-gnu/include
endif
GLHEADER := $(shell find -L $(HEADER_SEARCH_PATH) -name gl.h -print 2>/dev/null)
GLUHEADER := $(shell find -L $(HEADER_SEARCH_PATH) -name glu.h -print 2>/dev/null)
ifeq ("$(GLHEADER)","")
$(info >>> WARNING - gl.h not found, refer to CUDA Getting Started Guide for how to find and install them. <<<)
SAMPLE_ENABLED := 0
endif
ifeq ("$(GLUHEADER)","")
$(info >>> WARNING - glu.h not found, refer to CUDA Getting Started Guide for how to find and install them. <<<)
SAMPLE_ENABLED := 0
endif
else
# This would be the Mac OS X path if we had to do anything special
endif

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@@ -0,0 +1,730 @@
/* Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of NVIDIA CORPORATION nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// OpenGL Graphics includes
#include <helper_gl.h>
#if defined(__APPLE__) || defined(MACOSX)
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
#include <GLUT/glut.h>
#else
#include <GL/freeglut.h>
#endif
// CUDA Library Headers
#include <curand.h>
#include <cuda_gl_interop.h>
// CUDA utilities and system includes
#include <helper_cuda.h>
#include <rendercheck_gl.h>
// System includes
#include <stdexcept>
#include <sstream>
#include <iomanip>
#include <math.h>
// Includes
#include "rng.h"
// standard utility and system includes
#include <helper_timer.h>
// SDK information
static const char *printfFile = "randomFog.txt";
// RNG instance
RNG *g_pRng = NULL;
// CheckRender instance (for QA)
CheckRender *g_pCheckRender = NULL;
// Simple struct which contains the position and color of a vertex
struct SVertex {
GLfloat x, y, z;
GLfloat r, g, b;
};
// Data for the vertices
SVertex *g_pVertices = NULL;
int g_nVertices; // Size of the vertex array
int g_nVerticesPopulated; // Number currently populated
// Control the randomness
int nSkip1 = 0; // Number of samples to discard between x,y
int nSkip2 = 0; // Number of samples to discard between y,z
int nSkip3 = 0; // Number of samples to discard between z,x
// Control the display
enum Shape_t { Sphere, SphericalShell, Cube, Plane };
Shape_t g_currentShape = Sphere;
bool g_bShowAxes = true;
bool g_bTenXZoom = false;
bool g_bAutoRotate = true;
int g_lastShapeX = 1024;
int g_lastShapeY = 1024;
float g_xRotated = 0.0f;
float g_yRotated = 0.0f;
const float PI = 3.14159265359f;
void createCube(void) {
int startVertex = 0;
for (int i = startVertex; i < g_nVerticesPopulated; i++) {
g_pVertices[i].x = (g_pRng->getNextU01() - .5f) * 2;
for (int j = 0; j < nSkip1; j++) {
g_pRng->getNextU01();
}
g_pVertices[i].y = (g_pRng->getNextU01() - .5f) * 2;
for (int j = 0; j < nSkip2; j++) {
g_pRng->getNextU01();
}
g_pVertices[i].z = (g_pRng->getNextU01() - .5f) * 2;
for (int j = 0; j < nSkip3; j++) {
g_pRng->getNextU01();
}
g_pVertices[i].r = 1.0f;
g_pVertices[i].g = 1.0f;
g_pVertices[i].b = 1.0f;
}
}
void createPlane(void) {
int startVertex = 0;
for (int i = startVertex; i < g_nVerticesPopulated; i++) {
g_pVertices[i].x = (g_pRng->getNextU01() - .5f) * 2;
for (int j = 0; j < nSkip1; j++) {
g_pRng->getNextU01();
}
g_pVertices[i].y = (g_pRng->getNextU01() - .5f) * 2;
for (int j = 0; j < nSkip2; j++) {
g_pRng->getNextU01();
}
g_pVertices[i].z = 0.0f;
g_pVertices[i].r = 1.0f;
g_pVertices[i].g = 1.0f;
g_pVertices[i].b = 1.0f;
}
}
void createSphere(void) {
int startVertex = 0;
for (int i = startVertex; i < g_nVerticesPopulated; i++) {
float r;
float rho;
float theta;
if (g_currentShape == Sphere) {
r = g_pRng->getNextU01();
r = powf(r, 1.f / 3.f);
for (int j = 0; j < nSkip3; j++) {
g_pRng->getNextU01();
}
} else {
r = 1.0f;
}
rho = g_pRng->getNextU01() * PI * 2.0f;
for (int j = 0; j < nSkip1; j++) {
g_pRng->getNextU01();
}
theta = (g_pRng->getNextU01() * 2.0f) - 1.0f;
theta = asin(theta);
for (int j = 0; j < nSkip2; j++) {
g_pRng->getNextU01();
}
g_pVertices[i].x = r * fabs(cos(theta)) * cos(rho);
g_pVertices[i].y = r * fabs(cos(theta)) * sin(rho);
g_pVertices[i].z = r * sin(theta);
g_pVertices[i].r = 1.0f;
g_pVertices[i].g = 1.0f;
g_pVertices[i].b = 1.0f;
}
}
void createAxes(void) {
// z axis:
g_pVertices[200000].x = 0.0f;
g_pVertices[200000].y = 0.0f;
g_pVertices[200000].z = -1.5f;
g_pVertices[200001].x = 0.0f;
g_pVertices[200001].y = 0.0f;
g_pVertices[200001].z = 1.5f;
g_pVertices[200000].r = 1.0f;
g_pVertices[200000].g = 0.0f;
g_pVertices[200000].b = 0.0f;
g_pVertices[200001].r = 0.0f;
g_pVertices[200001].g = 1.0f;
g_pVertices[200001].b = 1.0f;
// y axis:
g_pVertices[200002].x = 0.0f;
g_pVertices[200002].y = -1.5f;
g_pVertices[200002].z = 0.0f;
g_pVertices[200003].x = 0.0f;
g_pVertices[200003].y = 1.5f;
g_pVertices[200003].z = 0.0f;
g_pVertices[200002].r = 0.0f;
g_pVertices[200002].g = 1.0f;
g_pVertices[200002].b = 0.0f;
g_pVertices[200003].r = 1.0f;
g_pVertices[200003].g = 0.0f;
g_pVertices[200003].b = 1.0f;
// x axis:
g_pVertices[200004].x = -1.5f;
g_pVertices[200004].y = 0.0f;
g_pVertices[200004].z = 0.0f;
g_pVertices[200005].x = 1.5f;
g_pVertices[200005].y = 0.0f;
g_pVertices[200005].z = 0.0f;
g_pVertices[200004].r = 0.0f;
g_pVertices[200004].g = 0.0f;
g_pVertices[200004].b = 1.0f;
g_pVertices[200005].r = 1.0f;
g_pVertices[200005].g = 1.0f;
g_pVertices[200005].b = 0.0f;
}
void drawPoints(void) {
if (g_bShowAxes) {
glDrawArrays(GL_LINE_STRIP, 200000, 2);
glDrawArrays(GL_LINE_STRIP, 200002, 2);
glDrawArrays(GL_LINE_STRIP, 200004, 2);
}
glDrawArrays(GL_POINTS, 0, g_nVerticesPopulated);
}
void drawText(void) {
using std::string;
using std::stringstream;
glPushMatrix();
glLoadIdentity();
glRasterPos2f(-1.2f, 1.2f);
string infoString;
stringstream ss;
g_pRng->getInfoString(infoString);
ss << " skip1=" << nSkip1;
ss << " skip2=" << nSkip2;
ss << " skip3=" << nSkip3;
ss << " points=" << g_nVerticesPopulated;
infoString.append(ss.str());
for (unsigned int i = 0; i < infoString.size(); i++) {
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_12, infoString[i]);
}
glPopMatrix();
}
void reshape(int x, int y) {
float xScale;
float yScale;
g_lastShapeX = x;
g_lastShapeY = y;
// Check if shape is visible
if (x == 0 || y == 0) {
return;
}
// Set a new projection matrix
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
// Adjust fit
if (y > x) {
xScale = 1.0f;
yScale = (float)y / x;
} else {
xScale = (float)x / y;
yScale = 1.0f;
}
// Angle of view:40 degrees
// Near clipping plane distance: 10.0 (default)
// Far clipping plane distance: 10.0 (default)
if (g_bTenXZoom) {
glOrtho(-.15f * xScale, .15f * xScale, -.15f * yScale, .15f * yScale, -5.0f,
5.0f);
} else {
glOrtho(-1.5f * xScale, 1.5f * xScale, -1.5f * yScale, 1.5f * yScale,
-10.0f, 10.0f);
}
// Use the whole window for rendering
glViewport(0, 0, x, y);
glMatrixMode(GL_MODELVIEW);
}
void display(void) {
glClear(GL_COLOR_BUFFER_BIT);
glLoadIdentity();
glTranslatef(0.0f, 0.0f, -4.0f);
glRotatef(g_yRotated, 0.0f, 1.0f, 0.0f);
glRotatef(g_xRotated, 1.0f, 0.0f, 0.0f);
drawPoints();
drawText();
glFlush();
glutSwapBuffers();
}
void idle(void) {
if (g_bAutoRotate) {
g_yRotated += 0.1f;
if (g_yRotated >= 360.0f) {
g_yRotated -= 360.0f;
}
g_xRotated += 0.05f;
if (g_xRotated >= 360.0f) {
g_xRotated -= 360.0f;
}
display();
}
}
void reCreate(void) {
switch (g_currentShape) {
case Sphere:
case SphericalShell:
createSphere();
break;
case Cube:
createCube();
break;
default:
createPlane();
}
display();
}
void cleanup(int code) {
if (g_pRng) {
delete g_pRng;
g_pRng = NULL;
}
if (g_pVertices) {
delete[] g_pVertices;
g_pVertices = NULL;
}
if (g_pCheckRender) {
delete g_pCheckRender;
g_pCheckRender = NULL;
}
exit(code);
}
void glutClose() { cleanup(EXIT_SUCCESS); }
void keyboard(unsigned char key, int x, int y) {
switch (key) {
// Select shape
case 's':
case 'S':
g_currentShape = Sphere;
createSphere();
display();
break;
case 'e':
case 'E':
g_currentShape = SphericalShell;
createSphere();
display();
break;
case 'b':
case 'B':
g_currentShape = Cube;
createCube();
display();
break;
case 'p':
case 'P':
g_currentShape = Plane;
createPlane();
display();
break;
// Rotation
case 'a':
case 'A':
g_bAutoRotate = !g_bAutoRotate;
break;
case 'i':
case 'I':
g_xRotated -= 1.0f;
if (g_xRotated <= 0.0f) {
g_xRotated += 360.0f;
}
display();
break;
case ',':
g_xRotated += 1.0f;
if (g_xRotated >= 360.0f) {
g_xRotated -= 360.0f;
}
display();
break;
case 'j':
case 'J':
g_yRotated -= 1.0f;
if (g_yRotated <= 0.0f) {
g_yRotated += 360.0f;
}
display();
break;
case 'l':
case 'L':
g_yRotated += 1.0f;
if (g_yRotated >= 360.0f) {
g_yRotated -= 360.0f;
}
display();
break;
// Zoom
case 't':
case 'T':
g_bTenXZoom = !g_bTenXZoom;
reshape(g_lastShapeX, g_lastShapeY);
reCreate();
break;
// Axes
case 'z':
case 'Z':
g_bShowAxes = !g_bShowAxes;
reCreate();
break;
// RNG
case 'x':
case 'X':
g_pRng->selectRng(RNG::Pseudo);
reCreate();
break;
case 'c':
case 'C':
g_pRng->selectRng(RNG::Quasi);
reCreate();
break;
case 'v':
case 'V':
g_pRng->selectRng(RNG::ScrambledQuasi);
reCreate();
break;
case 'r':
case 'R':
g_pRng->resetSeed();
reCreate();
break;
case ']':
g_pRng->incrementDimensions();
reCreate();
break;
case '[':
g_pRng->resetDimensions();
reCreate();
break;
case '1':
nSkip1++;
reCreate();
break;
case '2':
nSkip2++;
reCreate();
break;
case '3':
nSkip3++;
reCreate();
break;
case '!':
nSkip1 = 0;
nSkip2 = 0;
nSkip3 = 0;
reCreate();
break;
// Number of vertices
case '+':
g_nVerticesPopulated += 8000;
if (g_nVerticesPopulated > g_nVertices) {
g_nVerticesPopulated = g_nVertices;
}
reCreate();
break;
case '-':
g_nVerticesPopulated -= 8000;
if (g_nVerticesPopulated < 8000) {
g_nVerticesPopulated = 8000;
}
reCreate();
break;
// Quit
case 27:
case 'q':
case 'Q':
#if defined(__APPLE__) || defined(MACOSX)
exit(EXIT_SUCCESS);
#else
glutDestroyWindow(glutGetWindow());
return;
#endif
}
}
void showHelp(void) {
using std::left;
using std::setw;
using std::stringstream;
stringstream ss;
ss << "\nRandom number visualization\n\n";
ss << "On creation, randomFog generates 200,000 random coordinates in "
"spherical coordinate space (radius, angle rho, angle theta) with "
"curand's XORWOW algorithm. The coordinates are normalized for a "
"uniform distribution through the sphere.\n\n";
ss << "The X axis is drawn with blue in the negative direction and yellow "
"positive.\n"
<< "The Y axis is drawn with green in the negative direction and magenta "
"positive.\n"
<< "The Z axis is drawn with red in the negative direction and cyan "
"positive.\n\n";
ss << "The following keys can be used to control the output:\n\n";
ss << left;
ss << "\t" << setw(10) << "s"
<< "Generate a new set of random numbers and display as spherical "
"coordinates (Sphere)\n";
ss << "\t" << setw(10) << "e"
<< "Generate a new set of random numbers and display on a spherical "
"surface (shEll)\n";
ss << "\t" << setw(10) << "b"
<< "Generate a new set of random numbers and display as cartesian "
"coordinates (cuBe/Box)\n";
ss << "\t" << setw(10) << "p"
<< "Generate a new set of random numbers and display on a cartesian plane "
"(Plane)\n\n";
ss << "\t" << setw(10) << "i,l,j"
<< "Rotate the negative Z-axis up, right, down and left respectively\n";
ss << "\t" << setw(10) << "a"
<< "Toggle auto-rotation\n";
ss << "\t" << setw(10) << "t"
<< "Toggle 10x zoom\n";
ss << "\t" << setw(10) << "z"
<< "Toggle axes display\n\n";
ss << "\t" << setw(10) << "x"
<< "Select XORWOW generator (default)\n";
ss << "\t" << setw(10) << "c"
<< "Select Sobol' generator\n";
ss << "\t" << setw(10) << "v"
<< "Select scrambled Sobol' generator\n";
ss << "\t" << setw(10) << "r"
<< "Reset XORWOW (i.e. reset to initial seed) and regenerate\n";
ss << "\t" << setw(10) << "]"
<< "Increment the number of Sobol' dimensions and regenerate\n";
ss << "\t" << setw(10) << "["
<< "Reset the number of Sobol' dimensions to 1 and regenerate\n\n";
ss << "\t" << setw(10) << "+"
<< "Increment the number of displayed points by 8,000 (up to maximum "
"200,000)\n";
ss << "\t" << setw(10) << "-"
<< "Decrement the number of displayed points by 8,000 (down to minimum "
"8,000)\n\n";
ss << "\t" << setw(10) << "q/[ESC]"
<< "Quit the application.\n\n";
puts(ss.str().c_str());
}
int main(int argc, char **argv) {
using std::runtime_error;
try {
bool bQA = false;
// Open the log file
printf("Random Fog\n");
printf("==========\n\n");
// Check QA mode
if (checkCmdLineFlag(argc, (const char **)argv, "qatest")) {
bQA = true;
findCudaDevice(argc, (const char **)argv);
g_pCheckRender =
new CheckBackBuffer(g_lastShapeX, g_lastShapeY, 4, false);
} else {
#if defined(__linux__)
setenv("DISPLAY", ":0", 0);
#endif
// Initialize GL
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
// TODO use width/height?
glutInitWindowSize(1000, 1000);
// Create a window with rendering context and everything else we need
glutCreateWindow("Random Fog");
if (!isGLVersionSupported(2, 0)) {
fprintf(stderr, "This sample requires at least OpenGL 2.0\n");
exit(EXIT_WAIVED);
}
// Select CUDA device with OpenGL interoperability
findCudaDevice(argc, (const char **)argv);
}
// Create vertices
g_nVertices = 200000;
g_nVerticesPopulated = 200000;
g_pVertices = new SVertex[g_nVertices + 6];
// Setup the random number generators
g_pRng = new RNG(12345, 1, 100000);
printf("CURAND initialized\n");
// Compute the initial vertices and indices, starting in spherical mode
createSphere();
createAxes();
showHelp();
if (bQA) {
g_pCheckRender->setExecPath(argv[0]);
g_pCheckRender->dumpBin(
g_pVertices, g_nVerticesPopulated * sizeof(SVertex), "randomFog.bin");
if (g_pCheckRender->compareBin2BinFloat(
"randomFog.bin", "ref_randomFog.bin",
g_nVerticesPopulated * sizeof(SVertex) / sizeof(float), 0.25f,
0.35f)) {
cleanup(EXIT_SUCCESS);
} else {
cleanup(EXIT_FAILURE);
}
} else {
// As we do not yet use a depth buffer, we cannot fill our sphere
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
// Enable the vertex array functionality:
glEnableClientState(GL_VERTEX_ARRAY);
// Enable the color array functionality (so we can specify a color for
// each vertex)
glEnableClientState(GL_COLOR_ARRAY);
// Pass the vertex pointer:
glVertexPointer(3, // 3 components per vertex (x,y,z)
GL_FLOAT, sizeof(SVertex), g_pVertices);
// Pass the color pointer
glColorPointer(3, // 3 components per vertex (r,g,b)
GL_FLOAT, sizeof(SVertex),
&g_pVertices[0].r); // Pointer to the first color
// Point size for point mode
glPointSize(1.0f);
glLineWidth(2.0f);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
// Notify glut which messages we require:
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutKeyboardFunc(keyboard);
glutIdleFunc(idle);
#if defined(__APPLE__) || defined(MACOSX)
atexit(glutClose);
#else
glutCloseFunc(glutClose);
#endif
// Let's get started!
glutMainLoop();
}
} catch (runtime_error &e) {
printf("runtime error (%s)\n", e.what());
}
exit(EXIT_SUCCESS);
}

View File

@@ -0,0 +1,20 @@

Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio 2017
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Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio 2019
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "randomFog", "randomFog_vs2019.vcxproj", "{997E0757-EA74-4A4E-A0FC-47D8C8831A15}"
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Debug|x64 = Debug|x64
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{997E0757-EA74-4A4E-A0FC-47D8C8831A15}.Release|x64.ActiveCfg = Release|x64
{997E0757-EA74-4A4E-A0FC-47D8C8831A15}.Release|x64.Build.0 = Release|x64
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309
Samples/randomFog/rng.cpp Normal file
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/* Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of NVIDIA CORPORATION nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// Utilities and System includes
// Includes
#include <curand.h>
#include <stdexcept>
#include <sstream>
#include "rng.h"
// Shared Library Test Functions
#include <helper_timer.h>
#include <helper_cuda.h>
const unsigned int RNG::s_maxQrngDimensions = 20000;
RNG::RNG(unsigned long prngSeed, unsigned int qrngDimensions,
unsigned int nSamples)
: m_prngSeed(prngSeed),
m_qrngDimensions(qrngDimensions),
m_nSamplesBatchTarget(nSamples),
m_nSamplesRemaining(0) {
using std::invalid_argument;
using std::runtime_error;
using std::string;
if (m_prngSeed == 0) {
throw invalid_argument("PRNG seed must be non-zero");
}
if (m_qrngDimensions == 0) {
throw invalid_argument("QRNG dimensions must be non-zero");
}
if (m_nSamplesBatchTarget == 0) {
throw invalid_argument("RNG batch size must be non-zero");
}
if (m_nSamplesBatchTarget < s_maxQrngDimensions) {
throw invalid_argument(
"RNG batch size must be greater than RNG::s_maxQrngDimensions");
}
curandStatus_t curandResult;
cudaError_t cudaResult;
// Allocate sample array in host mem
m_h_samples = (float *)malloc(m_nSamplesBatchTarget * sizeof(float));
if (m_h_samples == NULL) {
throw runtime_error("Could not allocate host memory for RNG::m_h_samples");
}
// Allocate sample array in device mem
cudaResult =
cudaMalloc((void **)&m_d_samples, m_nSamplesBatchTarget * sizeof(float));
if (cudaResult != cudaSuccess) {
string msg("Could not allocate device memory for RNG::m_d_samples: ");
msg += cudaGetErrorString(cudaResult);
throw runtime_error(msg);
}
// Create the Random Number Generators
curandResult = curandCreateGenerator(&m_prng, CURAND_RNG_PSEUDO_XORWOW);
if (curandResult != CURAND_STATUS_SUCCESS) {
string msg("Could not create pseudo-random number generator: ");
msg += curandResult;
throw runtime_error(msg);
}
curandResult = curandCreateGenerator(&m_qrng, CURAND_RNG_QUASI_SOBOL32);
if (curandResult != CURAND_STATUS_SUCCESS) {
string msg("Could not create quasi-random number generator: ");
msg += curandResult;
throw runtime_error(msg);
}
curandResult =
curandCreateGenerator(&m_sqrng, CURAND_RNG_QUASI_SCRAMBLED_SOBOL32);
if (curandResult != CURAND_STATUS_SUCCESS) {
string msg("Could not create scrambled quasi-random number generator: ");
msg += curandResult;
throw runtime_error(msg);
}
// Setup initial parameters
resetSeed();
updateDimensions();
setBatchSize();
// Set default RNG to be pseudo-random (XORWOW)
m_pCurrent = &m_prng;
}
RNG::~RNG() {
curandDestroyGenerator(m_prng);
curandDestroyGenerator(m_qrng);
curandDestroyGenerator(m_sqrng);
if (m_d_samples) {
cudaFree(m_d_samples);
}
if (m_h_samples) {
free(m_h_samples);
}
}
void RNG::generateBatch(void) {
using std::runtime_error;
using std::string;
cudaError_t cudaResult;
curandStatus_t curandResult;
// Generate random numbers
curandResult =
curandGenerateUniform(*m_pCurrent, m_d_samples, m_nSamplesBatchActual);
if (curandResult != CURAND_STATUS_SUCCESS) {
string msg("Could not generate random numbers: ");
msg += curandResult;
throw runtime_error(msg);
}
// Copy random numbers to host
cudaResult =
cudaMemcpy(m_h_samples, m_d_samples,
m_nSamplesBatchActual * sizeof(float), cudaMemcpyDeviceToHost);
if (cudaResult != cudaSuccess) {
string msg("Could not copy random numbers to host: ");
msg += cudaGetErrorString(cudaResult);
throw runtime_error(msg);
}
}
float RNG::getNextU01(void) {
if (m_nSamplesRemaining == 0) {
generateBatch();
m_nSamplesRemaining = m_nSamplesBatchActual;
}
if (m_pCurrent == &m_prng) {
return m_h_samples[m_nSamplesBatchActual - m_nSamplesRemaining--];
} else {
unsigned int index = m_nSamplesBatchActual - m_nSamplesRemaining--;
unsigned int samplesPerDim = m_nSamplesBatchActual / m_qrngDimensions;
unsigned int dimOffset = (index % m_qrngDimensions) * samplesPerDim;
unsigned int drawOffset = index / m_qrngDimensions;
return m_h_samples[dimOffset + drawOffset];
}
}
void RNG::getInfoString(std::string &msg) {
using std::stringstream;
stringstream ss;
if (m_pCurrent == &m_prng) {
ss << "XORWOW (seed=" << m_prngSeed << ")";
} else if (m_pCurrent == &m_qrng) {
ss << "Sobol (dimensions=" << m_qrngDimensions << ")";
} else if (m_pCurrent == &m_sqrng) {
ss << "Scrambled Sobol (dimensions=" << m_qrngDimensions << ")";
} else {
ss << "Invalid RNG";
}
msg.assign(ss.str());
}
void RNG::selectRng(RNG::RngType type) {
switch (type) {
case Quasi:
m_pCurrent = &m_qrng;
break;
case ScrambledQuasi:
m_pCurrent = &m_sqrng;
break;
case Pseudo:
default:
m_pCurrent = &m_prng;
break;
}
setBatchSize();
}
void RNG::resetSeed(void) {
using std::runtime_error;
curandStatus_t curandResult;
curandResult = curandSetPseudoRandomGeneratorSeed(m_prng, m_prngSeed);
if (curandResult != CURAND_STATUS_SUCCESS) {
std::string msg("Could not set pseudo-random number generator seed: ");
msg += curandResult;
throw runtime_error(msg);
}
curandResult = curandSetGeneratorOffset(m_prng, 0);
if (curandResult != CURAND_STATUS_SUCCESS) {
std::string msg("Could not set pseudo-random number generator offset: ");
msg += curandResult;
throw runtime_error(msg);
}
setBatchSize();
}
void RNG::resetDimensions(void) {
m_qrngDimensions = 1;
updateDimensions();
setBatchSize();
}
void RNG::incrementDimensions(void) {
if (++m_qrngDimensions > s_maxQrngDimensions) {
m_qrngDimensions = 1;
}
updateDimensions();
setBatchSize();
}
void RNG::updateDimensions(void) {
using std::runtime_error;
curandStatus_t curandResult;
curandResult =
curandSetQuasiRandomGeneratorDimensions(m_qrng, m_qrngDimensions);
if (curandResult != CURAND_STATUS_SUCCESS) {
std::string msg("Could not set quasi-random number generator dimensions: ");
msg += curandResult;
throw runtime_error(msg);
}
curandResult = curandSetGeneratorOffset(m_qrng, 0);
if (curandResult != CURAND_STATUS_SUCCESS) {
std::string msg("Could not set quasi-random number generator offset: ");
msg += curandResult;
throw runtime_error(msg);
}
curandResult =
curandSetQuasiRandomGeneratorDimensions(m_sqrng, m_qrngDimensions);
if (curandResult != CURAND_STATUS_SUCCESS) {
std::string msg(
"Could not set scrambled quasi-random number generator dimensions: ");
msg += curandResult;
throw runtime_error(msg);
}
curandResult = curandSetGeneratorOffset(m_sqrng, 0);
if (curandResult != CURAND_STATUS_SUCCESS) {
std::string msg(
"Could not set scrambled quasi-random number generator offset: ");
msg += curandResult;
throw runtime_error(msg);
}
}
void RNG::setBatchSize(void) {
if (m_pCurrent == &m_prng) {
m_nSamplesBatchActual = m_nSamplesBatchTarget;
} else {
m_nSamplesBatchActual =
(m_nSamplesBatchTarget / m_qrngDimensions) * m_qrngDimensions;
}
m_nSamplesRemaining = 0;
}

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Samples/randomFog/rng.h Normal file
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/* Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of NVIDIA CORPORATION nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <curand.h>
#include <string>
// RNGs
class RNG
{
public:
enum RngType {Pseudo, Quasi, ScrambledQuasi};
RNG(unsigned long prngSeed, unsigned int qrngDimensions, unsigned int nSamples);
virtual ~RNG();
float getNextU01(void);
void getInfoString(std::string &msg);
void selectRng(RngType type);
void resetSeed(void);
void resetDimensions(void);
void incrementDimensions(void);
private:
// Generators
curandGenerator_t *m_pCurrent;
curandGenerator_t m_prng;
curandGenerator_t m_qrng;
curandGenerator_t m_sqrng;
// Parameters
unsigned long m_prngSeed;
unsigned int m_qrngDimensions;
// Batches
const unsigned int m_nSamplesBatchTarget;
unsigned int m_nSamplesBatchActual;
unsigned int m_nSamplesRemaining;
void generateBatch(void);
// Helpers
void updateDimensions(void);
void setBatchSize(void);
// Buffers
float *m_h_samples;
float *m_d_samples;
static const unsigned int s_maxQrngDimensions;
};