Hello... I run single-server orangefs all the time in VMs for testing and development. Your laptop is probably a good place to test orangefs functionality, but I don't think a single server on a laptop will seem high-performance...
-Mike On Sun, Jan 4, 2015 at 9:16 AM, houssen <[email protected]> wrote: > Hello, > > With PVFS, can I expect to get speed-up in the 2 following cases: > 1. Copy data (with scp or rsync) from local storage (my laptop) to the > PVFS storage. > If yes, do I have to do some specific tuning ? (ssh config file ? > others ?) > 2. Run a code that uses MPI-IO (or HDF5) to read or write (big) files. > If yes, do I have to modify my code and / or re-compile MPI (or HDF5) > with specific options to account for PVFS ? > > I am completely new to file systems related stuffs. I came to PVFS by > googling "open source parallel file system" as I try to understand why we > observe speed-down behaviors when using our CentOS+GPFS cluster (I suspect > the problem is related to the file system). > > At the very first googling, my understanding was that, as soon as PVFS is > installed and the PVFS server is running, I should get speed-up when > copying data and also when running my code (my code uses MPI-IO or HDF5 + > MPI-IO and HDF5 should be speeded up by the PVFS server) : my understanding > was that in some ways the PVFS server could speed-up things (copy data, > running) without compelling me to change anything in the usual copy / run > process. When I went on reading the doc, I read about libpvfs : I am not > sure to understand why / how one needs to use it. Do I need to re-compile > MPI (HDF5) taking account for libpvfs ? Do I have to recompile my code > taking account for libpvfs ? I am not sure to understand how things have to > be done : this is why I post this mail to get some help / explanations. > > Thanks, > > Franck > > PS : I run Ubuntu 14.04 on my laptop. For now I only would like to install > PVFS on my laptop to see if I can get some speed-up. If I succeed to use > PVFS on my laptop, I may try to use it on the cluster to compare with gpfs > (this is why I googled "open source parallel file system" !). > > > _______________________________________________ > Pvfs2-users mailing list > [email protected] > http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users >
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