mirror of
https://github.com/NVIDIA/cuda-samples.git
synced 2024-11-25 12:39:15 +08:00
130 lines
4.5 KiB
C
130 lines
4.5 KiB
C
/* Copyright (c) 2022, 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.
|
|
*/
|
|
|
|
/* Helper structures to simplify variable handling */
|
|
|
|
#ifndef _STRUCTS_H_
|
|
#define _STRUCTS_H_
|
|
|
|
struct InputData {
|
|
//! host side representation of diagonal
|
|
float *a;
|
|
//! host side representation superdiagonal
|
|
float *b;
|
|
|
|
//! device side representation of diagonal
|
|
float *g_a;
|
|
//! device side representation of superdiagonal
|
|
float *g_b;
|
|
//! helper variable pointing to the mem allocated for g_b which provides
|
|
//! space for one additional element of padding at the beginning
|
|
float *g_b_raw;
|
|
};
|
|
|
|
struct ResultDataSmall {
|
|
//! eigenvalues (host side)
|
|
float *eigenvalues;
|
|
|
|
// left interval limits at the end of the computation
|
|
float *g_left;
|
|
|
|
// right interval limits at the end of the computation
|
|
float *g_right;
|
|
|
|
// number of eigenvalues smaller than the left interval limit
|
|
unsigned int *g_left_count;
|
|
|
|
// number of eigenvalues bigger than the right interval limit
|
|
unsigned int *g_right_count;
|
|
|
|
//! flag if algorithm converged
|
|
unsigned int *g_converged;
|
|
|
|
// helper variables
|
|
|
|
unsigned int mat_size_f;
|
|
unsigned int mat_size_ui;
|
|
|
|
float *zero_f;
|
|
unsigned int *zero_ui;
|
|
};
|
|
|
|
struct ResultDataLarge {
|
|
// number of intervals containing one eigenvalue after the first step
|
|
unsigned int *g_num_one;
|
|
|
|
// number of (thread) blocks of intervals containing multiple eigenvalues
|
|
// after the first step
|
|
unsigned int *g_num_blocks_mult;
|
|
|
|
//! left interval limits of intervals containing one eigenvalue after the
|
|
//! first iteration step
|
|
float *g_left_one;
|
|
|
|
//! right interval limits of intervals containing one eigenvalue after the
|
|
//! first iteration step
|
|
float *g_right_one;
|
|
|
|
//! interval indices (position in sorted listed of eigenvalues)
|
|
//! of intervals containing one eigenvalue after the first iteration step
|
|
unsigned int *g_pos_one;
|
|
|
|
//! left interval limits of intervals containing multiple eigenvalues
|
|
//! after the first iteration step
|
|
float *g_left_mult;
|
|
|
|
//! right interval limits of intervals containing multiple eigenvalues
|
|
//! after the first iteration step
|
|
float *g_right_mult;
|
|
|
|
//! number of eigenvalues less than the left limit of the eigenvalue
|
|
//! intervals containing multiple eigenvalues
|
|
unsigned int *g_left_count_mult;
|
|
|
|
//! number of eigenvalues less than the right limit of the eigenvalue
|
|
//! intervals containing multiple eigenvalues
|
|
unsigned int *g_right_count_mult;
|
|
|
|
//! start addresses in g_left_mult etc. of blocks of intervals containing
|
|
//! more than one eigenvalue after the first step
|
|
unsigned int *g_blocks_mult;
|
|
|
|
//! accumulated number of intervals in g_left_mult etc. of blocks of
|
|
//! intervals containing more than one eigenvalue after the first step
|
|
unsigned int *g_blocks_mult_sum;
|
|
|
|
//! eigenvalues that have been generated in the second step from intervals
|
|
//! that still contained multiple eigenvalues after the first step
|
|
float *g_lambda_mult;
|
|
|
|
//! eigenvalue index of intervals that have been generated in the second
|
|
//! processing step
|
|
unsigned int *g_pos_mult;
|
|
};
|
|
|
|
#endif // #ifndef _STRUCTS_H_
|