[Beowulf] mpich buffering problem?
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knomura123 knomura123 at hotmail.comSun Apr 10 00:02:24 PDT 2005
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I have a cluster running with Fedra Core2 + Opteron, and I recently installed MPICH-1.2.6 + PathScale2.0. I'm having a problem of output from MPI job. If I redirect standard output into a file like mpirun -np 8 a.out > log I won't be able to see the output data until the amount of output data reaches 4096 bytes. I want to check my result in real time, but I have to wait due to the buffering. The same problem happens when I save the output into files. I ran my code only using fileserver remove NFS effect, but it still happened. Does anyone have any idea? Ken -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.scyld.com/pipermail/beowulf/attachments/20050410/1b0abc55/attachment.html
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