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Hello
When I use my software running with Intel MPI 2.0 (sorry can't update MPI for the moment), I can see numerous temporary files named .nfsXXXXXXXX which worried my customers . The process running with MPI needs 4 files in input and generates4 files in output, all these files are read and written on a remote disk via the network and the I use 4 cpus.
Can you tell me more about these files, is there a relationship between the number of .nsfxxx files and the files in input/output?
When I use my software running with Intel MPI 2.0 (sorry can't update MPI for the moment), I can see numerous temporary files named .nfsXXXXXXXX which worried my customers . The process running with MPI needs 4 files in input and generates4 files in output, all these files are read and written on a remote disk via the network and the I use 4 cpus.
Can you tell me more about these files, is there a relationship between the number of .nsfxxx files and the files in input/output?
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Quoting - martialp
Hello
When I use my software running with Intel MPI 2.0 (sorry can't update MPI for the moment), I can see numerous temporary files named .nfsXXXXXXXX which worried my customers . The process running with MPI needs 4 files in input and generates4 files in output, all these files are read and written on a remote disk via the network and the I use 4 cpus.
Can you tell me more about these files, is there a relationship between the number of .nsfxxx files and the files in input/output?
When I use my software running with Intel MPI 2.0 (sorry can't update MPI for the moment), I can see numerous temporary files named .nfsXXXXXXXX which worried my customers . The process running with MPI needs 4 files in input and generates4 files in output, all these files are read and written on a remote disk via the network and the I use 4 cpus.
Can you tell me more about these files, is there a relationship between the number of .nsfxxx files and the files in input/output?
Hi Martialp,
These files do not depend on the MPI version. These files were created as a temporary files when an open file was deleted on NFS mounted file systems. The file is created so the unfinished process can continue writing/reading to that file which was deleted. It stays around even after the process has finished.
Use fuser
Basically, you can ignore this, not a serious problem in my mind.
Regards!
Dmitry

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