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Subject: Re: [OMPI users] Program deadlocks, on simple send/recv loop
From: vasilis gkanis (gkanis_at_[hidden])
Date: 2009-12-03 11:15:20


I had a similar problem with the portland Fortran compiler. I new that this
was not caused by a network problem ( I run the code on a single node with 4
CPUs). After I tested pretty much anything, I decided to change the compiler.
I used the Intel Fortran compiler and everything is running fine.
It could be a PGI compiler voodoo :)

Vasilis

On Thursday 03 December 2009 05:56:39 pm Brock Palen wrote:
> On Dec 1, 2009, at 8:09 PM, John R. Cary wrote:
> > Jeff Squyres wrote:
> >> (for the web archives)
> >>
> >> Brock and I talked about this .f90 code a bit off list -- he's
> >> going to investigate with the test author a bit more because both
> >> of us are a bit confused by the F90 array syntax used.
>
> Jeff, I talked to the user this morning, that data is contiguous in
> memory, sans any PGI compiler voodoo,
> The allocation statement is ok:
> allocate(vec(vec_size,vec_per_proc*(size-1)))
>
> This allocates memory vec(32768, 2350)
>
> Note that Fortran is column major in memory, that explains (I knew
> this sorry forgot) why the indexes are switched,
>
> Brock Palen
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