On Wednesday August 31 2011 12:14:55 Anders Logg wrote: > On Wed, Aug 31, 2011 at 12:07:42PM -0700, Johan Hake wrote: > > A recent commit to instant fixes this problem. > > > > The reason this has been a problem before is that the filelocking system > > used by instant does not work for NFS. Which many of use when submitting > > jobs to a cluster. > > > > I found a NFS safe file locking library online, fcntl: > > > > https://launchpad.net/flufl.lock > > > > which is now supported by instant. If not present it defaults to the old > > one. My understandment of file locking is still limited, but it worked > > for some test cases I have using PyDOLFIN, which broke misserably with > > the old file locking module. > > > > Please install it and test this new feature. > > > > The time where a simulation need to be run on the frontend first to > > generate the compiled code might be over :). > > Nice! I just did exactly that today before submitting a job (run on > frontend to get all the forms in place). > > Which package contains flufl, and is it installed on bigblue?
Probably not. It is back to manual install I guess. Do not think it is provided by Debian yet. Also it should not be confused with: python-flufl.enum - Yet another Python enumeration package. Johan > -- > Anders > > > Johan > > > > > > On Wednesday August 3 2011 20:49:24 Johan Hake wrote: > > > Hello! > > > > > > Why do we write generated code to file when the jit compilation is > > > used? This introduce a cause of error which has annoyed me for some > > > time now. Instead of writing the code to file and then in ufc.build we > > > just read the file again, we could just pass the code as a single str. > > > > > > This would save us for a lot of hassle with file access during server > > > run. When several runs are commited and executed at one time I > > > experience a lot of runs that stops prematurely because of file access > > > problem. This "should" have been fixed by some file locking > > > mechanism which > > > > really is > > > > > not working. > > > > > > If you think this is a cool thing to do I can do the work. We just have > > > to add a parameter, or an extra argument to some ffc functions and > > > change the interface to ufc.build. > > > > > > Johan > > > > > > _______________________________________________ > > > Mailing list: https://launchpad.net/~ffc > > > Post to : ffc@lists.launchpad.net > > > Unsubscribe : https://launchpad.net/~ffc > > > More help : https://help.launchpad.net/ListHelp > > > > > > > > _______________________________________________ > > Mailing list: https://launchpad.net/~ffc > > Post to : ffc@lists.launchpad.net > > Unsubscribe : https://launchpad.net/~ffc > > More help : https://help.launchpad.net/ListHelp > > _______________________________________________ > Mailing list: https://launchpad.net/~ffc > Post to : ffc@lists.launchpad.net > Unsubscribe : https://launchpad.net/~ffc > More help : https://help.launchpad.net/ListHelp
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