Are you compiling on a lustre file system? That can significantly slow
the compilation since the parallel filesystem is optimized for write
throughput of large files. On ORNL jaguar in the NFS mounted
directories it takes 10 minutes or so to compile. Compiling on the
lustre mounted directories takes an hour or more. (10% per hour is a
bit worse than what I've ever seen on the older trilab computers so it
may be something else). I get around this by compiling from the fast
filesystem and copying the result to the lustre partition where the
back end nodes can see it.

Try "module unload altd". This is a profiling library that some of the
big machines use recenty that does not like "make -j anything". Once
that is removed you can make -j to your hearts content.

David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909


On Mon, Sep 17, 2012 at 4:52 PM, Hodge, Neil E. <[email protected]> wrote:
> All:
>
> A quick question: I need to build paraview from source for my application,
> and it seems to be working fine, it is just deathly slow (around 10%
> completed per hour).  Ten hours to build the code seems crazy to me . . .
>
> The structure of the makefile does not seem amenable to "make -j n"; I
> kept getting a bunch of "file not found" errors, but when I would run make
> again, it would work for another minute or two before bombing again.
>
> Any thoughts?  Thanks.
>
> Neil
>
> ======================================================================
> Neil Hodge, Ph.D.
> Methods Development Group
> Lawrence Livermore National Laboratory
>
>
>
>
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