7a5a74ea96
Summary: This patch changes the libomptarget runtime to always emit debug messages that occur before offloading failure. The goal is to provide users with information about why their application failed in the target region rather than a single failure message. This is only done in regions that precede offloading failure so this should not impact runtime performance. if the debug environment variable is set then the message is forwarded to the debug output as usual. A new environment variable was added for future use but does nothing in this current patch. LIBOMPTARGET_INFO will be used to report runtime information to the user if requrested, such as grid size, SPMD usage, or data mapping. It will take an integer indicating the level of information verbosity and a value of 0 will disable it. Reviewers: jdoerfort Subscribers: guansong sstefan1 yaxunl ye-luo Tags: #OpenMP Differential Revision: https://reviews.llvm.org/D86483
114 lines
3.7 KiB
C
114 lines
3.7 KiB
C
// --------------------------------------------------
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// Check extends before
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// --------------------------------------------------
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// RUN: %libomptarget-compile-aarch64-unknown-linux-gnu \
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// RUN: -fopenmp-version=51 -DEXTENDS=BEFORE
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// RUN: %libomptarget-run-fail-aarch64-unknown-linux-gnu 2>&1 \
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// RUN: | %fcheck-aarch64-unknown-linux-gnu
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// RUN: %libomptarget-compile-powerpc64-ibm-linux-gnu \
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// RUN: -fopenmp-version=51 -DEXTENDS=BEFORE
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// RUN: %libomptarget-run-fail-powerpc64-ibm-linux-gnu 2>&1 \
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// RUN: | %fcheck-powerpc64-ibm-linux-gnu
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// RUN: %libomptarget-compile-powerpc64le-ibm-linux-gnu \
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// RUN: -fopenmp-version=51 -DEXTENDS=BEFORE
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// RUN: %libomptarget-run-fail-powerpc64le-ibm-linux-gnu 2>&1 \
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// RUN: | %fcheck-powerpc64le-ibm-linux-gnu
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// RUN: %libomptarget-compile-x86_64-pc-linux-gnu \
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// RUN: -fopenmp-version=51 -DEXTENDS=BEFORE
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// RUN: %libomptarget-run-fail-x86_64-pc-linux-gnu 2>&1 \
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// RUN: | %fcheck-x86_64-pc-linux-gnu
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// --------------------------------------------------
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// Check extends after
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// --------------------------------------------------
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// RUN: %libomptarget-compile-aarch64-unknown-linux-gnu \
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// RUN: -fopenmp-version=51 -DEXTENDS=AFTER
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// RUN: %libomptarget-run-fail-aarch64-unknown-linux-gnu 2>&1 \
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// RUN: | %fcheck-aarch64-unknown-linux-gnu
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// RUN: %libomptarget-compile-powerpc64-ibm-linux-gnu \
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// RUN: -fopenmp-version=51 -DEXTENDS=AFTER
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// RUN: %libomptarget-run-fail-powerpc64-ibm-linux-gnu 2>&1 \
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// RUN: | %fcheck-powerpc64-ibm-linux-gnu
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// RUN: %libomptarget-compile-powerpc64le-ibm-linux-gnu \
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// RUN: -fopenmp-version=51 -DEXTENDS=AFTER
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// RUN: %libomptarget-run-fail-powerpc64le-ibm-linux-gnu 2>&1 \
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// RUN: | %fcheck-powerpc64le-ibm-linux-gnu
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// RUN: %libomptarget-compile-x86_64-pc-linux-gnu \
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// RUN: -fopenmp-version=51 -DEXTENDS=AFTER
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// RUN: %libomptarget-run-fail-x86_64-pc-linux-gnu 2>&1 \
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// RUN: | %fcheck-x86_64-pc-linux-gnu
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// END.
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#include <stdio.h>
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#define BEFORE 0
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#define AFTER 1
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#define SIZE 100
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#if EXTENDS == BEFORE
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# define SMALL_BEG (SIZE-2)
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# define SMALL_END SIZE
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# define LARGE_BEG 0
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# define LARGE_END SIZE
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#elif EXTENDS == AFTER
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# define SMALL_BEG 0
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# define SMALL_END 2
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# define LARGE_BEG 0
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# define LARGE_END SIZE
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#else
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# error EXTENDS undefined
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#endif
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#define SMALL_SIZE (SMALL_END-SMALL_BEG)
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#define LARGE_SIZE (LARGE_END-LARGE_BEG)
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#define SMALL SMALL_BEG:SMALL_SIZE
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#define LARGE LARGE_BEG:LARGE_SIZE
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int main() {
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int arr[SIZE];
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// CHECK: addr=0x[[#%x,SMALL_ADDR:]], size=[[#%u,SMALL_BYTES:]]
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fprintf(stderr, "addr=%p, size=%ld\n", &arr[SMALL_BEG],
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SMALL_SIZE * sizeof arr[0]);
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// CHECK: addr=0x[[#%x,LARGE_ADDR:]], size=[[#%u,LARGE_BYTES:]]
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fprintf(stderr, "addr=%p, size=%ld\n", &arr[LARGE_BEG],
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LARGE_SIZE * sizeof arr[0]);
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// CHECK-NOT: Libomptarget
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#pragma omp target data map(alloc: arr[LARGE])
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{
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#pragma omp target data map(present, tofrom: arr[SMALL])
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;
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}
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// CHECK: arr is present
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fprintf(stderr, "arr is present\n");
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// CHECK: Libomptarget message: explicit extension not allowed: host address specified is 0x{{0*}}[[#LARGE_ADDR]] ([[#LARGE_BYTES]] bytes), but device allocation maps to host at 0x{{0*}}[[#SMALL_ADDR]] ([[#SMALL_BYTES]] bytes)
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// CHECK: Libomptarget message: device mapping required by 'present' map type modifier does not exist for host address 0x{{0*}}[[#LARGE_ADDR]] ([[#LARGE_BYTES]] bytes)
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// CHECK: Libomptarget error: Call to getOrAllocTgtPtr returned null pointer ('present' map type modifier).
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// CHECK: Libomptarget fatal error 1: failure of target construct while offloading is mandatory
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#pragma omp target data map(alloc: arr[SMALL])
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{
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#pragma omp target data map(present, tofrom: arr[LARGE])
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;
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}
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// CHECK-NOT: arr is present
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fprintf(stderr, "arr is present\n");
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return 0;
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}
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