Hello,
I don't have a common file system for all cluster nodes.
I've tried to run the application again with VT_UNIFY=no and to call
vtunify manually. It works well. I managed to get the .otf file.
Thank you.
Thomas Ropars
Andreas Knüpfer wrote:
Hello Thomas,
sorry for the delay. My first asumption about the cause of your problem is the
so called "unify" process. This is a post-processing step which is performed
automatically after the trace run. This step needs read access to all files,
though. So, do you have a common file system for all cluster nodes?
If yes, set the env variable VT_PFORM_GDIR point there. Then the traces will
be copied there from the location VT_PFORM_LDIR which still can be a
node-local directory. Then everything will be handled automatically.
If not, please set VT_UNIFY=no in order to disable automatic unification. Then
you need to call vtunify manually. Please copy all files from the run
directory that start with your OTF file prefix to a common directory and call
%> vtunify <number of processes> <file prefix>
there. This should give you the <prefix>.otf file.
Please give this a try. If it is not working, please give me an 'ls -alh' from
your trace directory/directories.
Best regards, Andreas
P.S.: Please have my email on CC, I'm not on the us...@open-mpi.org list.
From: Thomas Ropars <trop...@irisa.fr>
Date: August 11, 2008 3:47:54 PM IST
To: us...@open-mpi.org
Subject: [OMPI users] Problem using VampirTrace
Reply-To: Open MPI Users <us...@open-mpi.org>
Hi all,
I'm trying to use VampirTrace.
I'm working with r19234 of svn trunk.
When I try to run a simple application with 4 processes on the same
computer, it works well.
But if try to use the same application with the 4 processes executed
on 4 different computers, I never get the .otf file.
I've tried to run with VT_VERBOSE=yes, and I get the following trace:
VampirTrace: Thread object #0 created, total number is 1
VampirTrace: Opened OTF writer stream [namestub /tmp/ring-
vt.fffffffffe8349ca.3294 id 1] for generation [buffer 32000000 bytes]
VampirTrace: Thread object #0 created, total number is 1
VampirTrace: Opened OTF writer stream [namestub /tmp/ring-
vt.fffffffffe834bca.3020 id 1] for generation [buffer 32000000 bytes]
VampirTrace: Thread object #0 created, total number is 1
VampirTrace: Opened OTF writer stream [namestub /tmp/ring-
vt.fffffffffe834aca.3040 id 1] for generation [buffer 32000000 bytes]
VampirTrace: Thread object #0 created, total number is 1
VampirTrace: Opened OTF writer stream [namestub /tmp/ring-
vt.fffffffffe834fca.3011 id 1] for generation [buffer 32000000 bytes]
Ring : Start
Ring : End
[1]VampirTrace: Flushed OTF writer stream [namestub /tmp/ring-
vt.fffffffffe834aca.3040 id 1]
[2]VampirTrace: Flushed OTF writer stream [namestub /tmp/ring-
vt.fffffffffe834bca.3020 id 1]
[1]VampirTrace: Closed OTF writer stream [namestub /tmp/ring-
vt.fffffffffe834aca.3040 id 1]
[3]VampirTrace: Flushed OTF writer stream [namestub /tmp/ring-
vt.fffffffffe834fca.3011 id 1]
[2]VampirTrace: Closed OTF writer stream [namestub /tmp/ring-
vt.fffffffffe834bca.3020 id 1]
[0]VampirTrace: Flushed OTF writer stream [namestub /tmp/ring-
vt.fffffffffe8349ca.3294 id 1]
[1]VampirTrace: Wrote unify control file ./ring-vt.2.uctl
[2]VampirTrace: Wrote unify control file ./ring-vt.3.uctl
[3]VampirTrace: Closed OTF writer stream [namestub /tmp/ring-
vt.fffffffffe834fca.3011 id 1]
[0]VampirTrace: Closed OTF writer stream [namestub /tmp/ring-
vt.fffffffffe8349ca.3294 id 1]
[0]VampirTrace: Wrote unify control file ./ring-vt.1.uctl
[0]VampirTrace: Checking for ./ring-vt.1.uctl ...
[0]VampirTrace: Checking for ./ring-vt.2.uctl ...
[1]VampirTrace: Removed trace file /tmp/ring-vt.fffffffffe834aca.
3040.1.def
[2]VampirTrace: Removed trace file /tmp/ring-vt.fffffffffe834bca.
3020.1.def
[3]VampirTrace: Wrote unify control file ./ring-vt.4.uctl
[1]VampirTrace: Removed trace file /tmp/ring-vt.fffffffffe834aca.
3040.1.events
[2]VampirTrace: Removed trace file /tmp/ring-vt.fffffffffe834bca.
3020.1.events
[3]VampirTrace: Removed trace file /tmp/ring-vt.fffffffffe834fca.
3011.1.def
[1]VampirTrace: Thread object #0 deleted, leaving 0
[2]VampirTrace: Thread object #0 deleted, leaving 0
[3]VampirTrace: Removed trace file /tmp/ring-vt.fffffffffe834fca.
3011.1.events
[3]VampirTrace: Thread object #0 deleted, leaving 0
Regards
Thomas
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