If I have many processes, such as 30, I have to open 30 terminal windows ?
> Date: Mon, 26 Jul 2010 08:23:57 +0200 > From: firstname.lastname@example.org > To: email@example.com > Subject: Re: [OMPI users] OpenMPI Segmentation fault (11) > > Hi Jack > > Have you tried to run your aplication under valgrind? > Even though applications generallay run slower under valgrind, > it may detect memory errors before the actual crash happens. > > The best would be to start a terminal window for each of your processes > so you can see valgrind's output for each process separately. > > Jody > > On Mon, Jul 26, 2010 at 4:08 AM, Jack Bryan <firstname.lastname@example.org> wrote: > > Dear All, > > I run a 6 parallel processes on OpenMPI. > > When the run-time of the program is short, it works well. > > But, if the run-time is long, I got errors: > > [n124:45521] *** Process received signal *** > > [n124:45521] Signal: Segmentation fault (11) > > [n124:45521] Signal code: Address not mapped (1) > > [n124:45521] Failing at address: 0x44 > > [n124:45521] [ 0] /lib64/libpthread.so.0 [0x3c50e0e4c0] > > [n124:45521] [ 1] /lib64/libc.so.6(strlen+0x10) [0x3c50278d60] > > [n124:45521] [ 2] /lib64/libc.so.6(_IO_vfprintf+0x4479) [0x3c50246b19] > > [n124:45521] [ 3] /lib64/libc.so.6(_IO_printf+0x9a) [0x3c5024d3aa] > > [n124:45521] [ 4] /home/path/exec [0x40ec9a] > > [n124:45521] [ 5] /lib64/libc.so.6(__libc_start_main+0xf4) [0x3c5021d974] > > [n124:45521] [ 6] /home/path/exec [0x401139] > > [n124:45521] *** End of error message *** > > It seems that there may be some problems about memory management. > > But, I cannot find the reason. > > My program needs to write results to some files. > > If I open the files too many without closing them, I may get the above > > errors. > > But, I have removed the writing files from my program. > > The problem appears again when the program runs longer time. > > Any help is appreciated. > > Jack > > July 25 2010 > > > > ________________________________ > > Hotmail is redefining busy with tools for the New Busy. Get more from your > > inbox. See how. > > _______________________________________________ > > users mailing list > > email@example.com > > http://www.open-mpi.org/mailman/listinfo.cgi/users > > > > _______________________________________________ > users mailing list > firstname.lastname@example.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
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