Mercurial > hg > CbC > CbC_gcc
view libgomp/testsuite/libgomp.oacc-c-c++-common/par-reduction-1.c @ 138:fc828634a951
merge
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Thu, 08 Nov 2018 14:17:14 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-additional-options "-w" } */ #include <assert.h> /* Test of reduction on parallel directive. */ #define ACTUAL_GANGS 256 int main (int argc, char *argv[]) { int res, res1 = 0, res2 = 0; #if defined(ACC_DEVICE_TYPE_host) # define GANGS 1 #else # define GANGS 256 #endif #pragma acc parallel num_gangs(GANGS) num_workers(32) vector_length(32) \ reduction(+:res1) copy(res2, res1) { res1 += 5; #pragma acc atomic res2 += 5; } res = GANGS * 5; assert (res == res1); assert (res == res2); #undef GANGS res = res1 = res2 = 1; #if defined(ACC_DEVICE_TYPE_host) # define GANGS 1 #else # define GANGS 8 #endif #pragma acc parallel num_gangs(GANGS) num_workers(32) vector_length(32) \ reduction(*:res1) copy(res1, res2) { res1 *= 5; #pragma acc atomic res2 *= 5; } for (int i = 0; i < GANGS; ++i) res *= 5; assert (res == res1); assert (res == res2); #undef GANGS return 0; }