On Jan 4, 2011, at 8:34 AM, Jeff Squyres wrote:
> On Jan 3, 2011, at 5:14 PM, David Singleton wrote:
>
>> That message should only be 2MB. Are you sure its not a mismatch of
>> message lengths in MPI_Bcast calls?
>
> +1 -- this is MB, not GB. The error message implies that one (or more?) MPI
On Jan 3, 2011, at 5:14 PM, David Singleton wrote:
> That message should only be 2MB. Are you sure its not a mismatch of
> message lengths in MPI_Bcast calls?
+1 -- this is MB, not GB. The error message implies that one (or more?) MPI
processes provided a size that was too small to receive. O
Hi Brock,
That message should only be 2MB. Are you sure its not a mismatch of
message lengths in MPI_Bcast calls?
David
On 01/04/2011 03:47 AM, Brock Palen wrote:
I have a user who reports that sending a broadcast of
540*1080 of reals (just over 2GB) fails with this:
*** An error occurred
Hi Brock
He's probably hitting the MPI address boundary of 2GB.
A workaround is to declare a user defined type (MPI_TYPE_CONTIGUOUS,
or MPI_TYPE_VECTOR), to bundle a bunch of primitive data (e.g. reals),
then send (broadcast for him/her) a smaller number of those types.
See this thread:
http://
