On Fri, 2010-01-08 at 11:36 +0530, Arunkumar C R wrote: > I do MPI programs using Fortran 90 in a Quad Core Machine with Fedora > OS. Could any one of you suggest a good debugger to resolve the > compilation/ run time errors?
It depends on what you mean by a debugger, there are two "parallel debuggers" on the market, TotalView and DDT, both closed source and fairly expensive. They are both graphical apps that allow you to start a job under their control or attach to existing jobs and allow full view of the job and control it's execution (stepping and setting breakpoints as you would in a non-parallel debugger). There is also padb which is a tool I develop, it's open-source and command line based, it doesn't allow you to dig as deep but does provide a lot of information about the state of a parallel job. It'll show you parallel stack traces but won't let you single step for example. The most basic way of using it and sample output are on-line here: http://padb.pittman.org.uk/full-report.html All three of these tools will allow you to see the "Message queues" contained within the parallel job as well. In addition I believe Eclipse has some support for parallel programs, I've not used it however so can't comment on it's features. Ashley. -- Ashley Pittman, Bath, UK. Padb - A parallel job inspection tool for cluster computing http://padb.pittman.org.uk
