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problem with parallel builds on AIX + NFS

From: Richard Hedges
Subject: problem with parallel builds on AIX + NFS
Date: Thu, 22 Sep 2005 10:18:39 -0700

I am seeing the precise symptoms that were discussed previously:  see http://developers.sun.com/solaris/articles/parallel_make.html

Problem 5: Old Versions of gmake and NFS

Very old versions of gmake will sometimes fail for parallel builds (but succeed for serial builds) when invoked in an NFS-mounted directory. The failure will manifest itself as a report that either of these has occurred:

    * One of the sources cannot be created:

    gmake: *** No way to make target 'some_source.c'.  Stop.
    gmake: *** Waiting for unfinished jobs....

The source target does exist and apparently is not detected effectively.  The problem is intermittent.

I didn't find any other detail on this, other than the version 3.79 or newer should fix the problem.  I am running 3.79.1 and have tried 3.80 as well.

Anything new on this or is anyone else experiencing problems with parallel builds on NFS?


- Richrd


Richard Hedges
Scalable I/O Project
Development Environment Group - Livermore Computing
Lawrence Livermore National Laboratory
7000 East Avenue, MS L-557
Livermore, CA  94551

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