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I goofed, openmpi does trap these errors but the system I tested them
on had a very sluggish response. However, and end-of-file is NOT
On Mon, Feb 8, 2010 at 1:29 PM, Laurence Marks <L-marks_at_[hidden]> wrote:
> This was "Re: [OMPI users] Trapping fortran I/O errors leaving zombie
> mpi processes", but it is more severe than this.
> Sorry, but it appears that at least with ifort most run-time errors
> and signals will leave zombie processes behind with openmpi if they
> only occur on some of the processors and not all. You can test this
> with the attached using (for instance)
> mpicc -c doraise.c
> mpif90 -o crash_test crash_test.F doraise.o -FR -xHost -O3
> Then, as appropriate mpirun -np 8 crash_test
> The output is self explanatory, and has an option to both try and
> simulate common fortran problems as well as to send fortran or C
> signals to the process. Please note that the results can be dependent
> upon the level of optimization, and with other compilers there could
> be problems where the compiler complains about SIGSEV or other errors
> since the code deliberately tries to create these.
> Laurence Marks
> Department of Materials Science and Engineering
> MSE Rm 2036 Cook Hall
> 2220 N Campus Drive
> Northwestern University
> Evanston, IL 60208, USA
> Tel: (847) 491-3996 Fax: (847) 491-7820
> email: L-marks at northwestern dot edu
> Web: www.numis.northwestern.edu
> Chair, Commission on Electron Crystallography of IUCR
> Electron crystallography is the branch of science that uses electron
> scattering and imaging to study the structure of matter.
Department of Materials Science and Engineering
MSE Rm 2036 Cook Hall
2220 N Campus Drive
Evanston, IL 60208, USA
Tel: (847) 491-3996 Fax: (847) 491-7820
email: L-marks at northwestern dot edu
Chair, Commission on Electron Crystallography of IUCR
Electron crystallography is the branch of science that uses electron
scattering and imaging to study the structure of matter.