[Openmp-dev] libiomp5.so problem on arm

[Steven Noonan]

Can you provide more data about your build environment? i.e. exact llvm,
clang, and openmp runtime versions?

I'll take a look at this issue over the weekend (though I need to get my
ARM box up and running again, it's currently unbootable).


On Wed, May 7, 2014 at 5:00 PM, Xiaokang Fan <xkfan87 at gmail.com> wrote:

>  Hi
>
> I have successfully cross compiled libiomp5.so for ARM using clang and
> arm-linux-gnueabihf toolchain. Then I cross compiled a simple openmp
> program with libiomp5.so. But when I tried to run the program on ARM, I got
> a problem. The program is:
>
> #include <stdio.h>
> #include <stdlib.h>
> #include <omp.h>
> int main(int argc, char** argv)
> {
> int i = 0;
> #pragma omp parallel for
> for(i = 0; i < 10; i++) {
> int tid = omp_get_thread_num();
> printf("hello from thread %d\n", tid);
> }
> return 0;
> }
>
> The output is:
>
> hello from thread 0
> hello from thread 0
> hello from thread 2
> hello from thread 2
> hello from thread 1
> hello from thread 1
> hello from thread 3
> hello from thread 3
> hello from thread 4
> hello from thread 4
> pthread_mutex_lock.c:80: __pthread_mutex_lock: Assertion
> `mutex->__data.__owner == 0' failed.
> Aborted
>
> Can someone provide some help?
>
> Thanks!
>
> Xiaokang
>
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>
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