1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
// clang-format off
// RUN: %libomptarget-compile-generic
// RUN: env LIBOMPTARGET_INFO=16 \
// RUN: %libomptarget-run-generic 2>&1 | %fcheck-generic --check-prefix=DEFAULT
// RUN: env LIBOMPTARGET_INFO=16 LIBOMPTARGET_MIN_THREADS_FOR_LOW_TRIP_COUNT=8 \
// RUN: %libomptarget-run-generic 2>&1 | %fcheck-generic --check-prefix=EIGHT
// REQUIRES: gpu
#define N 128
__attribute__((optnone)) void optnone() {}
int main() {
// DEFAULT: Launching kernel {{.+_main_.+}} with 4 blocks and 32 threads in SPMD mode
// EIGHT: Launching kernel {{.+_main_.+}} with 16 blocks and 8 threads in SPMD mode
#pragma omp target teams distribute parallel for simd
for (int i = 0; i < N; ++i) {
optnone();
}
// DEFAULT: Launching kernel {{.+_main_.+}} with 4 blocks and 32 threads in SPMD mode
// EIGHT: Launching kernel {{.+_main_.+}} with 16 blocks and 8 threads in SPMD mode
#pragma omp target teams distribute parallel for simd
for (int i = 0; i < N - 1; ++i) {
optnone();
}
// DEFAULT: Launching kernel {{.+_main_.+}} with 5 blocks and 32 threads in SPMD mode
// EIGHT: Launching kernel {{.+_main_.+}} with 17 blocks and 8 threads in SPMD mode
#pragma omp target teams distribute parallel for simd
for (int i = 0; i < N + 1; ++i) {
optnone();
}
// DEFAULT: Launching kernel {{.+_main_.+}} with 32 blocks and 4 threads in SPMD mode
// EIGHT: Launching kernel {{.+_main_.+}} with 32 blocks and 4 threads in SPMD mode
#pragma omp target teams distribute parallel for simd thread_limit(4)
for (int i = 0; i < N; ++i) {
optnone();
}
}
|
