On Tue, 15 Aug 2006, Asher Langton wrote: > Tim Schmielau wrote on 08/15/06: > > The problem appears for any OMP_NUM_THREADS value other than 1 (I tried > > up to 8 on an 8-way machine). > > Extracting a testcase from the 18.000 lines of code will probably require > > some work, so I was looking for easier things to chek first. But I'll try > > to do that, then. > > Are you using a lot of threadprivate variables? Try setting the > GOMP_STACKSIZE environment variable to a large value (in kB) and see > if the problem persists.
That's it! Yes, I do use a large set of threadprivate variables. I tried different settings of GOMP_STACKSIZE before. However, I somehow didn't hit a working setting as I didn't know it was measured in kB. The program now works on x86_64 with SETENV GOMP_STACKSIZE 1048576. On i686 I do not find a working stacksize, as for too large stacksizes the program dies with a segfault. Wonder how PGI and ifort deal with the limited address space. Thanks a lot! Tim
