[bolt-discuss] Error ABT_mutex_lock: 20

Halim Amer aamer at anl.gov
Fri Apr 14 15:50:58 CDT 2017


Carlos,

I think I have fixed the issue. Can you try the BOLT master branch and 
see if you still encounter any issues?

Thanks,

Halim
www.mcs.anl.gov/~aamer

On 3/22/17 11:28 AM, Halim Amer wrote:
> We can now track the progress on this issue at
> https://github.com/pmodels/bolt/issues/3.
>
> Halim
> www.mcs.anl.gov/~aamer
>
> On 3/16/17 10:40 AM, Halim Amer wrote:
>> Hi Carlos,
>>
>> Thanks for reporting this. We will look into this issue and keep you
>> posted.
>>
>> Halim
>> www.mcs.anl.gov/~aamer
>>
>> On 3/16/17 9:17 AM, Carlos Henrique Rebollo wrote:
>>> Hello,
>>>
>>> I Have compiled llvm 3.9.1 bolt 1.0a1 and argobots 1.0a1
>>>
>>> And tried use in simple task code.
>>>
>>> And I have get this on execution.
>>>
>>> [mutex.c:172] ABT_mutex_lock: 20
>>> Segmentation fault (core dumped)
>>>
>>> Worked with gcc and icc.
>>>
>>>
>>> Best wishes,
>>>
>>> Carlos Rebollo.
>>>
>>> gdb information
>>>
>>> Core was generated by `./a.out'.
>>> Program terminated with signal 11, Segmentation fault.
>>> #0  0x00007f64ca2426c2 in ABT_mutex_create ()
>>>    from /usr/local/llvm-bolt-argobots/lib/../lib/libabt.so.0
>>> (gdb) where
>>> #0  0x00007f64ca2426c2 in ABT_mutex_create ()
>>>    from /usr/local/llvm-bolt-argobots/lib/../lib/libabt.so.0
>>> #1  0x00007f64caa75300 in __kmp_do_serial_initialize ()
>>>     at
>>> /usr/local/src/llvm/projects/openmp/runtime/src/abt/kmp_abt_runtime.c:139
>>>
>>> #2  0x00007f64caa75a5a in __kmp_do_middle_initialize ()
>>>     at
>>> /usr/local/src/llvm/projects/openmp/runtime/src/abt/kmp_abt_runtime.c:363
>>>
>>> #3  0x00007f64caa75ddb in __kmp_middle_initialize ()
>>>     at
>>> /usr/local/src/llvm/projects/openmp/runtime/src/abt/kmp_abt_runtime.c:470
>>>
>>> #4  0x00007f64caa99362 in __kmp_api_omp_get_num_procs ()
>>>     at
>>> /usr/local/src/llvm/projects/openmp/runtime/src/abt/kmp_abt_ftn_entry.h:444
>>>
>>>
>>> #5  0x0000000000400b09 in main ()
>>>
>>> code
>>>
>>> #include <stdio.h>
>>> #include <stdlib.h>
>>> #include <omp.h>
>>> #include <unistd.h>
>>>
>>>
>>> int main(){
>>>         int i=0,j=0,res;
>>>         int mprocs=0;
>>>         int *pprocs;
>>>         pprocs=malloc(sizeof(int)*omp_get_num_procs());
>>>         for(i=0;i<omp_get_num_procs();i++)
>>>                 pprocs[i]=0;
>>>         #pragma omp parallel private(res)
>>>         {
>>>                 res=0;
>>>                 #pragma omp for private(i,j) nowait
>>>                 for(i=0;i<omp_get_num_procs()*10;i++){
>>>                         for(j=0;j<omp_get_thread_num()*100;j++)
>>>                         {
>>>                                 res=res+1;
>>>                                 //printf("for %i,%i res=%i thread
>>> %i\n",i,j,res,omp_get_thread_num());
>>>                         }
>>>                 }
>>>                 printf("res=%i thread %i\n",res,omp_get_thread_num());
>>>                 #pragma omp single
>>>                 {
>>>                         printf("Processo %i dentro single total %i\n",
>>> omp_get_thread_num(),omp_get_num_threads());
>>>                         for(i=0;i<omp_get_num_procs()*10;i++){
>>>                         #pragma omp task
>>>                         {
>>>                                 pprocs[omp_get_thread_num()]++;
>>>                                 if( omp_get_num_threads() > mprocs )
>>> mprocs=omp_get_num_threads();
>>>
>>>                                 printf("Processo %i dentro task total
>>> %i\n",
>>> omp_get_thread_num(),omp_get_num_threads());
>>>                         }
>>>                         }
>>>                 }
>>>         }
>>>         for(i=0;i<omp_get_num_procs();i++)
>>>                 printf("%i process %i itens\n",i,pprocs[i]);
>>>         printf("quantidade de processos %i\n",mprocs);
>>>         free(pprocs); pprocs=NULL;
>>>         return 0;
>>> }
>>>
>>>
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