Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Open MPI User's mailing list

Subject: [OMPI users] message truncated error
From: Jack Bryan (dtustudy68_at_[hidden])
Date: 2010-11-01 02:26:47


HI,
In my MPI program, master send many msaages to another worker with the same tag.
The worker uses sMPI::COMM_WORLD.Recv(&message_para_to_one_worker, 1, message_para_to_workers_type, 0, downStreamTaskTag);
to receive the messages
I got error:

n36:94880] *** An error occurred in MPI_Recv[n36:94880] *** on communicator MPI_COMM_WORLD[n36:94880] *** MPI_ERR_TRUNCATE: message truncated[n36:94880] *** MPI_ERRORS_ARE_FATAL (your MPI job will now abort)[n36:94880] *** Process received signal ***[n36:94880] Signal: Segmentation fault (11)[n36:94880] Signal code: Address not mapped (1)

Is this (the same tag) the reason for the errors ?
ANy help is appreciated.
thanks
Jack
Oct. 31 2010