Charm++ parallel programming system

[Rob Van der Wijngaart <robv AT nvidia.com>]

OK, I got my .log, .sts, and .projrc files for my run! Next question, if you don’t mind. I know of Projections, but I’d like to use my own graph analysis tools to parse the log files. Is there a description of the records in the .log and .sts files? Thanks!

 

Rob

 

From: Rob Van der Wijngaart
Sent: Tuesday, June 5, 2018 2:11 PM
To: 'Ronak Buch' <rabuch2 AT illinois.edu>
Cc: charm AT cs.illinois.edu
Subject: RE: [charm] Obtaining Charm++ profile

 

Thanks, Ronak!

 

Rob

 

From: Ronak Buch <rabuch2 AT illinois.edu>
Sent: Tuesday, June 5, 2018 2:05 PM
To: Rob Van der Wijngaart <robv AT nvidia.com>
Cc: charm AT cs.illinois.edu
Subject: Re: [charm] Obtaining Charm++ profile

 

You built Charm++ with the correct flag ("--enable-tracing"). The issue is that the application, when linked, needs the "-tracemode projections" flag.

 

Specifically, if you're building NAMD (as you seem to be), you can just run "make projections," which includes the "-tracemode projections" flag already.

 

Thanks,

Ronak

 

 

On Tue, Jun 5, 2018 at 12:47 PM, Rob Van der Wijngaart <robv AT nvidia.com> wrote:

Hello Team,

 

I am trying to obtain a profile of a NAMD run using Charm++. I built Charm++ this way:

./build charm++ multicore-linux64 gcc --with-production --enable-tracing -j40 -tracemode summary

According to the man page I should now automatically obtain a profile if I run the application like this:

./namd-2.13-multicore-cuda +traceroot $PWD +p32 +setcpuaffinity +pemap 0-31 +devices 0,1,2,3 stmv/stmv.namd

However, I do not see any profile. If I then add +sumonly to the command line, I get this error message:

WARNING: +sumonly is a command line argument beginning with a '+' but was not parsed by the RTS.

If any of the above arguments were intended for the RTS you may need to recompile Charm++ with different options.

So it appears I did not build Charm++ properly to support tracing. Can you tell me how to do it right?

Second, I am actually interesting in doing projections, not obtaining a summary profile, but I do not understand this instruction in the manual:

Link time option: -tracemode projections

After all, I only issue a build command to create the runtime, with no explicit link calls issued. Can you advise?
This concerns v6.8.2, which I obtained as a tar ball.

Thanks,
Rob

 

 

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