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cuda-samples/Samples/2_Concepts_and_Techniques/streamOrderedAllocationIPC/README.md
Rob Nertney 9c688d7ff7 Updating samples for CUDA 12.5
2024-07-25 16:30:13 +00:00

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streamOrderedAllocationIPC - stream Ordered Allocation IPC Pools

Description

This sample demonstrates IPC pools of stream ordered memory allocated using cudaMallocAsync and cudaMemPool family of APIs.

Key Concepts

Performance Strategies

Supported SM Architectures

SM 6.0 SM 6.1 SM 7.0 SM 7.2 SM 7.5 SM 8.0 SM 8.6 SM 8.7 SM 8.9 SM 9.0

Supported OSes

Linux

Supported CPU Architecture

x86_64

CUDA APIs involved

CUDA Driver API

cuDeviceGetAttribute, cuDeviceGet

CUDA Runtime API

cudaDeviceGetAttribute, cudaMemPoolImportFromShareableHandle, cudaSetDevice, cudaMemPoolExportPointer, cudaMemPoolGetAccess, cudaMemPoolDestroy, cudaMemPoolSetAccess, cudaMallocAsync, cudaMemPoolImportPointer, cudaGetDeviceCount, cudaMemcpyAsync, cudaDeviceCanAccessPeer, cudaFreeAsync, cudaStreamCreateWithFlags, cudaStreamDestroy, cudaGetLastError, cudaMemPoolCreate, cudaMemPoolExportToShareableHandle, cudaStreamSynchronize, cudaDeviceEnablePeerAccess, cudaOccupancyMaxActiveBlocksPerMultiprocessor, cudaGetDeviceProperties

Prerequisites

Download and install the CUDA Toolkit 12.5 for your corresponding platform.

Build and Run

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= - cross-compile targeting a specific architecture. Allowed architectures are x86_64. 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.
    $ make TARGET_ARCH=x86_64
    See here 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 for a list of supported host compilers.

    $ make HOST_COMPILER=g++

References (for more details)