[Pw_forum] MPI_Bcast error from cp.x

[Omololu Akin-Ojo]

Ciao tutti,

Pls does anyone know a simple way to fix this error which I got from running
cp.x with 4 processors:
ERROR: 0032-117 User pack or receive buffer is too small  (32) in MPI_Bcast,
task 1
ERROR: 0032-117 User pack or receive buffer is too small  (16) in MPI_Bcast,
task 2
ERROR: 0032-117 User pack or receive buffer is too small  (32) in MPI_Bcast,
task 3

I googled and found:
http://publib.boulder.ibm.com/infocenter/clresctr/vxrx/index.jsp?topic=%2Fcom.ibm.cluster.pe_linux43.messages.doc%2F0032-117.html
which says:
0032-117 Parallel Environment for Linux V4.3 Messages
SA38-0648-01

   User pack or receive buffer too small (number) in string, task number
Explanation

The buffer specified for the operation was too small to hold the message. In
the PACK and UNPACK cases it is the space between current position and
buffer end which is too small.
 User response

Increase the size of the buffer or reduce the size of the message. Error
Class: MPI_ERR_TRUNCATE

--------------------------------------------------------------------------------

I actually don't have a clue in which part of the program I should
increase/decrease buffer/message size.
Thanks for any help.

o.


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