> They never told you to do compiles on particular file systems or anything? For example did they ever say DON'T compile on the lustre file system?
I have not received any guidance about where to or not to compile. A quick perusing of the user guide doesn't make that clear to me. If it isn't already obvious, I am far from a Titan expert :) Do you know someone here at ORNL who I can talk to to make sure I am not missing something silly? > Perhaps the 52m 'sys' time could be luster overhead It could be, I have heard a lot of complaints about this from people who need to write output or read from files in their applications. Nate On Thu, Feb 26, 2015 at 10:36 PM, Satish Balay <[email protected]> wrote: > On Thu, 26 Feb 2015, Barry Smith wrote: > > > > > > On Feb 26, 2015, at 9:16 PM, Nathan Collier < > [email protected]> wrote: > > > > > > Barry, > > > > > > > Do you know where /tmp is on the system? Presumably it is fast? > > > > > > I am not sure about that. There is a /tmp but I am not sure what it is > or if/how I can use it. > > > > They never told you to do compiles on particular file systems or > anything? For example did they ever say DON'T compile on the lustre file > system? > > Ah - I misunderstood earlier. You'd like to have a petsc clone in /tmp > - and do the build there - and compare the difference [with the > current luster build]. > > Perhaps the 52m 'sys' time could be luster overhead - and that woud > disappear with a petsc build in /tmp. [and could be much faster]. > > Satish >
