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Bug#: 103218
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Status: RESOLVED
Resolution: FIXED
Assigned To: Gentoo Linux High-Performance Clustering Team <hp-cluster@gentoo.org>
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Reporter: Martin Mokrejš <mmokrejs@ribosome.natur.cuni.cz>
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Description:   Opened: 2005-08-21 03:37 0000 
Hi,
  I'm trying to follow the docs at http://www.gentoo.org/doc/en/hpc-howto.xml.
I've edited the file /usr/share/mpich/machines.LINUX but mpich expects that to
be somewhere else!

# vim /usr/share/mpich/machines.LINUX
# tstmachines -v LINUX
Cannot read list of nodes /usr/share/machines.LINUX
# 

  Regarding the documentation, do I really need /etc/exports file? I don't use
NFS. Do I have to then? The docs should say that clearly. Also, is mpich an
alternative to openpbs? So should I just follow one section of the howto file?

------- Comment #1 From Donnie Berkholz 2005-08-21 13:04:09 0000 ------- 
(In reply to comment #0)
> Hi,
>   I'm trying to follow the docs at http://www.gentoo.org/doc/en/hpc-howto.xml.
> I've edited the file /usr/share/mpich/machines.LINUX but mpich expects that to
> be somewhere else!

Which revision of mpich are you using? Please try 1.2.6-r2.

>   Regarding the documentation, do I really need /etc/exports file? I don't use
> NFS. Do I have to then? The docs should say that clearly. 

No, you don't. And the doc isn't designed to teach you everything about all the
related technologies to clustering, it's designed to get a cluster set up.

If you want a full background on everything, you'll have to read the individual
docs for each package.

> Also, is mpich an
> alternative to openpbs? So should I just follow one section of the howto file?

No, mpich is not an alternative to a job batching system. But a batching system
isn't required.

------- Comment #2 From Martin Mokrejš 2005-08-22 05:40:58 0000 ------- 
I use that version - sys-cluster/mpich-1.2.6-r2, see $Subj.

------- Comment #3 From Adam Carheden 2005-10-27 17:04:22 0000 ------- 
(In reply to comment #2)
> I use that version - sys-cluster/mpich-1.2.6-r2, see $Subj.

I'm using sys-cluster/mpich-1.2.6-r3 on AMD and the bug is still there. A
symlink from /usr/share/mpich/machines.LINUX to /usr/share/machines.LINUX seems
to work though.

------- Comment #4 From Donnie Berkholz 2005-11-06 14:48:17 0000 ------- 
Seems that it's ignoring the --datadir setting. I'm passing
--datadir=/usr/share/mpich  in configure, and e.g. mpirun shows up with
datadir=/usr/share. Looking into a fix.

------- Comment #5 From Donnie Berkholz 2005-11-06 17:31:45 0000 ------- 
Should be fixed in -r4.

------- Comment #6 From Martin Mokrejš 2005-11-07 04:07:37 0000 ------- 
I haven't checked but maybe the fix should also be applied to 1.2.7_p1?

------- Comment #7 From Donnie Berkholz 2005-11-07 10:14:36 0000 ------- 
You're exactly right, you haven't checked. =P Please don't reopen bugs unless
the problem actually isn't fixed.

A diff, or a read of the ChangeLog that shows 1.2.7 being added after 1.2.6-r4,
should suggest this is fixed in both.
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