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From: Brian W. Barrett (brbarret_at_[hidden])
Date: 2009-01-30 13:31:20


On Thu, 29 Jan 2009, ramya narasimhan wrote:

> I am a new user of lam. I have installed lam-7.1.3 with ifort compiler.
> When I use it to run charmm program, it produces the following error
>     forrtl: severe (174): SIGSEGV, segmentation fault occurred
>     When I increased the number of processors, it ran for few steps but
> failed before completing the number of steps to be performed. The ouput
> file is written with no error message.
>              I already tried the charmm script in serial mode , it ran
> with no error.

I'm unfortunately not familiar with charm, so the only adviace I can give
is that a SIGSEGV means that your application had some type of memory
error. I would check that you're passing the correct buffers to the
library you are using, or contact the charm authors. Such an error is
almost always caused by one of the packages layered on top of LAM/MPI, and
not LAM itself.

Brian

-- 
   Brian Barrett
   LAM/MPI Developer
   Make today a LAM/MPI day!