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Description
Problem Description
Executing the following reproducer script:
#!/bin/bash
module load rocm/6.4.0
TEST_NAME=amdclang-target-offload-schedule-failure
cat > ${TEST_NAME}.c << EOF
#include <omp.h>
int main()
{
int N = 100;
double a[N];
double sum1 = 0;
for (int i=0; i<N; i++)
a[i]=i;
#pragma omp target teams distribute parallel for map(tofrom:sum1) reduction(+:sum1) schedule(dynamic,10)
for (int j = 0; j < N; j=j+1)
sum1 += a[j];
return 0;
}
EOF
[[ -f ${TEST_NAME}.exe ]] && rm ${TEST_NAME}.exe
[[ -f ${TEST_NAME}.o ]] && rm ${TEST_NAME}.o
OPTIONS=" -O0 -fopenmp -fopenmp-targets=amdgcn-amd-amdhsa -Xopenmp-target=amdgcn-amd-amdhsa -march=gfx908 "
echo "AMDClang version"
which amdclang
echo "Compile"
amdclang -c ${TEST_NAME}.c -o ${TEST_NAME}.o ${OPTIONS}
echo "Link"
amdclang -o ${TEST_NAME}.exe ${TEST_NAME}.o ${OPTIONS}
echo "Run"
./${TEST_NAME}.exe
I'm finding the following behavior:
AMDClang version
/opt/rocm-6.4.0/bin/amdclang
Compile
Link
Run
AMDGPU fatal error 1: Memory access fault by GPU 2 (agent 0x1280c060) at virtual address 0x7f0f8521b000. Reasons: Page not present or supervisor privilege, Write access to a read-only page
./amdclang-reprod-debug-O0.sh: line 35: 67155 Aborted (core dumped) ./${TEST_NAME}.exe
Executing the same reproducer with any other -O optimization level (-O{1,2,3}), the fatal error is avoided.
Operating System
SLES15-SP6
CPU
AMD EPYC 7742 64-Core Processor
GPU
AMD Instinct MI100
ROCm Version
ROCm 6.4.0, ROCm 6.3.0, ROCm 6.2.0
ROCm Component
No response
Steps to Reproduce
See description for bash reproducer.
(Optional for Linux users) Output of /opt/rocm/bin/rocminfo --support
No response
Additional Information
No response