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87 lines
3.3 KiB
C
87 lines
3.3 KiB
C
2 years ago
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/*
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* Sp3MM_for_AlgebraicMultiGrid
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* (C) Copyright 2021-2022
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* Andrea Di Iorio
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions, and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the Sp3MM_for_AlgebraicMultiGrid or the names of its contributors may
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* not be used to endorse or promote products derived from this
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* software without specific written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE Sp3MM_for_AlgebraicMultiGrid GROUP OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <omp.h>
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#include <config.h>
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char* SCHEDULES[]={"OMP_SCHED_STATIC","OMP_SCHED_DYNAMIC","OMP_SCHED_GUIDED","OMP_SCHED_AUTO"};
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void ompGetRuntimeSchedule(int* kind_chunk_monotonic){
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/*
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* export OMP_SCHEDULE="[modifier:]kind[, chunk]"
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* typedef enum omp_sched_t {
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* //schedule kinds
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* omp_sched_static = 0x1,
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* omp_sched_dynamic = 0x2,
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* omp_sched_guided = 0x3,
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* omp_sched_auto = 0x4,
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* //schedule modifier //TODO API>=5.0
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* omp_sched_monotonic = 0x80000000u //TODO OMP >=5
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* } omp_sched_t;
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*/
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omp_sched_t k,kind; int chunk_size,monotonic=0;
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omp_get_schedule(&kind,&chunk_size);
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k=kind; //[monotonic OFF]
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#if _OPENMP >= 201811 //OMP_SCHED_SCHEDULE modifier from 5.0
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monotonic = omp_sched_monotonic & kind;
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if(monotonic) k = kind - omp_sched_monotonic;
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#endif
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printf("omp sched gather:\tkind:%s\tomp chunkSize:%d\tmonotonic:%s\tfairChunkFolding:%d\n",
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SCHEDULES[k-1],chunk_size,monotonic?"Y":"N",FAIR_CHUNKS_FOLDING);
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if (kind_chunk_monotonic){
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kind_chunk_monotonic[0] = k;
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kind_chunk_monotonic[1] = chunk_size;
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kind_chunk_monotonic[2] = monotonic;
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}
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}
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float ompVersionMacroMap(){
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switch ( _OPENMP ){
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case 200505: return 2.5;
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case 200805: return 3.0;
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case 201107: return 3.1;
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case 201307: return 4.0;
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case 201511: return 4.5;
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case 201811: return 5.0;
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case 202011: return 5.1;
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}
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}
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//WRAPPER to print all ICV vars
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#ifdef OMP_GET_ICV_MAIN
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int main(){
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#else
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void ompGetAllICV(){
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#endif
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printf("export OMP_DISPLAY_ENV=VERBOSE for full ICV details\n");
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printf("omp MAX THREADS USABLE\t%d\n",omp_get_max_threads());
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ompGetRuntimeSchedule(NULL);
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printf("omp API version:\t %1.1f\n",ompVersionMacroMap());
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}
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