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/* StarPU --- Runtime system for heterogeneous multicore architectures.
*
* Copyright (C) 2009, 2010-2011 Université de Bordeaux 1
* Copyright (C) 2010, 2011, 2012 Centre National de la Recherche Scientifique
* Copyright (C) 2011 Télécom-SudParis
*
* StarPU is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at
* your option) any later version.
*
* StarPU is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* See the GNU Lesser General Public License in COPYING.LGPL for more details.
*/
/*
* As a convention, in that file, buffers[0] is represented by A,
* buffers[1] is B ...
*/
/*
* Number of flops of Gemm
*/
#include <starpu.h>
#include "cholesky.h"
/* #define USE_PERTURBATION 1 */
#ifdef USE_PERTURBATION
#define PERTURBATE(a) ((starpu_drand48()*2.0f*(AMPL) + 1.0f - (AMPL))*(a))
#else
#define PERTURBATE(a) (a)
#endif
static double cpu_chol_task_11_cost(struct starpu_task *task, enum starpu_perf_archtype arch, unsigned nimpl)
{
uint32_t n;
n = starpu_matrix_get_nx(task->handles[0]);
double cost = (((double)(n)*n*n)/1000.0f*0.894/0.79176);
#ifdef STARPU_MODEL_DEBUG
FPRINTF(stdout, "cpu_chol_task_11_cost n %d cost %e\n", n, cost);
#endif
return PERTURBATE(cost);
}
static double cuda_chol_task_11_cost(struct starpu_task *task, enum starpu_perf_archtype arch, unsigned nimpl)
{
uint32_t n;
n = starpu_matrix_get_nx(task->handles[0]);
double cost = (((double)(n)*n*n)/50.0f/10.75/5.088633/0.9883);
#ifdef STARPU_MODEL_DEBUG
FPRINTF(stdout, "cuda_chol_task_11_cost n %d cost %e\n", n, cost);
#endif
return PERTURBATE(cost);
}
static double cpu_chol_task_21_cost(struct starpu_task *task, enum starpu_perf_archtype arch, unsigned nimpl)
{
uint32_t n;
n = starpu_matrix_get_nx(task->handles[0]);
double cost = (((double)(n)*n*n)/7706.674/0.95/0.9965);
#ifdef STARPU_MODEL_DEBUG
FPRINTF(stdout, "cpu_chol_task_21_cost n %d cost %e\n", n, cost);
#endif
return PERTURBATE(cost);
}
static double cuda_chol_task_21_cost(struct starpu_task *task, enum starpu_perf_archtype arch, unsigned nimpl)
{
uint32_t n;
n = starpu_matrix_get_nx(task->handles[0]);
double cost = (((double)(n)*n*n)/50.0f/10.75/87.29520);
#ifdef STARPU_MODEL_DEBUG
FPRINTF(stdout, "cuda_chol_task_21_cost n %d cost %e\n", n, cost);
#endif
return PERTURBATE(cost);
}
static double cpu_chol_task_22_cost(struct starpu_task *task, enum starpu_perf_archtype arch, unsigned nimpl)
{
uint32_t n;
n = starpu_matrix_get_nx(task->handles[0]);
double cost = (((double)(n)*n*n)/50.0f/10.75/8.0760);
#ifdef STARPU_MODEL_DEBUG
FPRINTF(stdout, "cpu_chol_task_22_cost n %d cost %e\n", n, cost);
#endif
return PERTURBATE(cost);
}
static double cuda_chol_task_22_cost(struct starpu_task *task, enum starpu_perf_archtype arch, unsigned nimpl)
{
uint32_t n;
n = starpu_matrix_get_nx(task->handles[0]);
double cost = (((double)(n)*n*n)/50.0f/10.75/76.30666);
#ifdef STARPU_MODEL_DEBUG
FPRINTF(stdout, "cuda_chol_task_22_cost n %d cost %e\n", n, cost);
#endif
return PERTURBATE(cost);
}
struct starpu_perfmodel chol_model_11 =
{
.per_arch =
{
[STARPU_CPU_DEFAULT][0] = { .cost_function = cpu_chol_task_11_cost },
[STARPU_CUDA_DEFAULT][0] = { .cost_function = cuda_chol_task_11_cost }
},
.type = STARPU_HISTORY_BASED,
.symbol = "chol_model_11"
};
struct starpu_perfmodel chol_model_21 =
{
.per_arch =
{
[STARPU_CPU_DEFAULT][0] = { .cost_function = cpu_chol_task_21_cost },
[STARPU_CUDA_DEFAULT][0] = { .cost_function = cuda_chol_task_21_cost }
},
.type = STARPU_HISTORY_BASED,
.symbol = "chol_model_21"
};
struct starpu_perfmodel chol_model_22 =
{
.per_arch =
{
[STARPU_CPU_DEFAULT][0] = { .cost_function = cpu_chol_task_22_cost },
[STARPU_CUDA_DEFAULT][0] = { .cost_function = cuda_chol_task_22_cost }
},
.type = STARPU_HISTORY_BASED,
.symbol = "chol_model_22"
};
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