What is the current state of the art for MPI (or PVM or other parallel
code) debuggers?
I think both Totalview and Allinea's DDT are the current state of the market.
the state of the art is probably less practical ;)
I do occasionally hear about academic efforts (TAO and something using
Eclipse).
I vaguely recall some review articles on this on CWM
and/or CM, and of course there has been list discussion in the past, but
what are CWM and CM?
sarcastic, but true. Part of this is because there's too much
information to look at using a regular debugger except for the most
DDT is based on a parallel-aware GUI that uses GDB for it's low-level,
per-rank manipulations. I think it's a good design - it certainly
tries to provide the user with a lot of leverage across many-way
parallel jobs.
counts (making one window per process impossible), and the third is
that, being remote, the fancy gui based debuggers run like a ruptured
turtle over the internet.
I've run DDT a few times from home (cablemodem, asymmetric bandwidth,
~15ms rtt, ssh -YC) and it seemed OK.
regards, mark hahn
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