StarPU Internal Handbook
starpu_parameters.h
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1 /* StarPU --- Runtime system for heterogeneous multicore architectures.
2  *
3  * Copyright (C) 2011-2021 Université de Bordeaux, CNRS (LaBRI UMR 5800), Inria
4  * Copyright (C) 2013 Thibaut Lambert
5  *
6  * StarPU is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU Lesser General Public License as published by
8  * the Free Software Foundation; either version 2.1 of the License, or (at
9  * your option) any later version.
10  *
11  * StarPU is distributed in the hope that it will be useful, but
12  * WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
14  *
15  * See the GNU Lesser General Public License in COPYING.LGPL for more details.
16  */
17 
18 #ifndef _STARPU_PARAMETERS_H
19 #define _STARPU_PARAMETERS_H
20 
23 /* Parameters which are not worth being added to ./configure options, but
24  * still interesting to easily change */
25 
26 /* Assumed relative performance ratios */
27 /* TODO: benchmark a bit instead */
28 #define _STARPU_CPU_ALPHA 1.0f
29 #define _STARPU_CUDA_ALPHA 13.33f
30 #define _STARPU_OPENCL_ALPHA 12.22f
31 #define _STARPU_MIC_ALPHA 0.5f
32 #define _STARPU_MPI_MS_ALPHA 1.0f
33 #endif /* _STARPU_PARAMETERS_H */