ABINIT Discussion Forums

I followed abinit tutorial on static non-linear properties.
If i run abinit with mpirun at step 1 with tnlo_2.in, then the process crashed at dataset 5 calculation. This is the message

*** An error occurred in MPI_Recv
*** on communicator MPI_COMM_WORLD
*** MPI_ERR_TRUNCATE: message truncated
*** MPI_ERRORS_ARE_FATAL: your MPI job will now abort
--------------------------------------------------------------------------
mpirun has exited due to process rank 2 with PID 2821 on node HP-Ubuntu exiting improperly.

Could anyone please confirm that you did try the tutorial with parallelism and successfully get the result? And also please tell me how you did that?

Some other questions that may related:
Does parallelism only apply to certain process? (if i run mpi with one processor there's no error)
Why dataset 5 got problem with parallelism?

Here is my environment:
OS: CentOS 6.3
abinit: 6.12.3
openmpi: 1.6.1

Hi Henry,

question 1: it's expected that the dataset 5 will crash MPI ... with version 6 of Abinit. This input is supposed to be executed sequentially as you noticed.
question 2: yes of course. It's therefore not advisable to "pack" several consecutive computations in the same input file when they have different parallel resources requirements. At best you waste hardware resources and sometimes it plainly crashes.
question 3: I assume here that the number of k points gets modified during the response calculation and this causes havoc in the MPI processes - anyone else with a more convincing explanation?

Kind regards,

Alain

That's the expert explanation I am looking for.
Alain, Thank you very much for your quick reply.