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[SYCL] Skip subgroup tests when subgroup size doesn't divide local size #15520

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[SYCL] Skip subgroup tests when subgroup size doesn't divide local size #15520

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4 changes: 4 additions & 0 deletions sycl/test-e2e/SubGroup/barrier.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,10 @@ void check(queue &Queue, size_t G = 240, size_t L = 60) {
host_accessor sgsizeacc(sgsizebuf);

size_t sg_size = sgsizeacc[0];
if (L % sg_size != 0) {
std::cout << "Sub group size doesn't divide local size, skipping.\n";
return;
}
int WGid = -1, SGid = 0;
T add = 0;
for (int j = 0; j < G; j++) {
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6 changes: 5 additions & 1 deletion sycl/test-e2e/SubGroup/common.cpp
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Expand Up @@ -45,7 +45,11 @@ void check(queue &Queue, unsigned int G, unsigned int L) {
host_accessor syclacc(syclbuf);
host_accessor sgsizeacc(sgsizebuf);
unsigned int sg_size = sgsizeacc[0];
unsigned int num_sg = L / sg_size + (L % sg_size ? 1 : 0);
if (L % sg_size != 0) {
std::cout << "Sub group size doesn't divide local size, skipping.\n";
return;
}
unsigned int num_sg = L / sg_size;
for (int j = 0; j < G; j++) {
unsigned int group_id = j % L / sg_size;
unsigned int local_range =
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