7459e10f34
The PR refactors the non-contiguous update tests as raised as a TODO in one of the comments in the related PR. Prefixed all with `strided_update`. For offload tests, added a dedicated sub-directory.
135 lines
2.8 KiB
C
135 lines
2.8 KiB
C
// This test checks "update from" and "update to" with variable stride.
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// Tests data[0:5:stride] where stride is a variable, making it non-contiguous.
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// RUN: %libomptarget-compile-run-and-check-generic
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#include <omp.h>
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#include <stdio.h>
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void test_1_update_from() {
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int stride = 2;
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double data[10];
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// Initialize data on host
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for (int i = 0; i < 10; i++) {
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data[i] = i;
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}
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printf("Test 1: Update FROM device\n");
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printf("original values:\n");
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for (int i = 0; i < 10; i++)
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printf("%f\n", data[i]);
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#pragma omp target data map(to : stride, data[0 : 10])
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{
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#pragma omp target
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{
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for (int i = 0; i < 10; i++) {
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data[i] += i;
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}
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}
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#pragma omp target update from(data[0 : 5 : stride])
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}
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printf("from target results:\n");
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for (int i = 0; i < 10; i++)
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printf("%f\n", data[i]);
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}
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void test_2_update_to() {
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int stride = 2;
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double data[10];
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for (int i = 0; i < 10; i++) {
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data[i] = i;
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}
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printf("\nTest 2: Update TO device\n");
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printf("original values:\n");
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for (int i = 0; i < 10; i++)
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printf("%f\n", data[i]);
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#pragma omp target data map(tofrom : stride, data[0 : 10])
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{
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#pragma omp target
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{
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for (int i = 0; i < 10; i++) {
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data[i] = 50.0;
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}
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}
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for (int i = 0; i < 10; i += 2) {
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data[i] = 10.0;
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}
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#pragma omp target update to(data[0 : 5 : stride])
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#pragma omp target
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{
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for (int i = 0; i < 10; i++) {
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data[i] += 5.0;
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}
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}
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}
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printf("device values after update to:\n");
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for (int i = 0; i < 10; i++)
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printf("%f\n", data[i]);
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}
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int main() {
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test_1_update_from();
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test_2_update_to();
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return 0;
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}
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// CHECK: Test 1: Update FROM device
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// CHECK: original values:
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// CHECK-NEXT: 0.000000
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// CHECK-NEXT: 1.000000
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// CHECK-NEXT: 2.000000
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// CHECK-NEXT: 3.000000
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// CHECK-NEXT: 4.000000
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// CHECK-NEXT: 5.000000
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// CHECK-NEXT: 6.000000
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// CHECK-NEXT: 7.000000
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// CHECK-NEXT: 8.000000
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// CHECK-NEXT: 9.000000
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// CHECK: from target results:
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// CHECK-NEXT: 0.000000
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// CHECK-NEXT: 1.000000
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// CHECK-NEXT: 4.000000
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// CHECK-NEXT: 3.000000
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// CHECK-NEXT: 8.000000
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// CHECK-NEXT: 5.000000
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// CHECK-NEXT: 12.000000
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// CHECK-NEXT: 7.000000
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// CHECK-NEXT: 16.000000
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// CHECK-NEXT: 9.000000
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// CHECK: Test 2: Update TO device
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// CHECK: original values:
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// CHECK-NEXT: 0.000000
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// CHECK-NEXT: 1.000000
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// CHECK-NEXT: 2.000000
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// CHECK-NEXT: 3.000000
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// CHECK-NEXT: 4.000000
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// CHECK-NEXT: 5.000000
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// CHECK-NEXT: 6.000000
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// CHECK-NEXT: 7.000000
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// CHECK-NEXT: 8.000000
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// CHECK-NEXT: 9.000000
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// CHECK: device values after update to:
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// CHECK-NEXT: 15.000000
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// CHECK-NEXT: 55.000000
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// CHECK-NEXT: 15.000000
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// CHECK-NEXT: 55.000000
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// CHECK-NEXT: 15.000000
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// CHECK-NEXT: 55.000000
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// CHECK-NEXT: 15.000000
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// CHECK-NEXT: 55.000000
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// CHECK-NEXT: 15.000000
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// CHECK-NEXT: 55.000000
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