Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Rahul_S_4
Beginner
620 Views

SIGSEGV, segmentation fault occurred - VASP

I have been trying to run VASP in parallel. But I am having running it in parallel on more than one computing nodes. It runs perfectly fine on one node but when I increase the number of nodes, the simulation crashes. I have gathered all the possible information from the execution and MPI calls with these options of mpirun: -v -check_mpi -genv I_MPI_DEBUG 5. The resulting information is in the attached files.

 

Please see if you can figure the exact problem and help me to sort out the problem. I will really appreciate any help.

 

 

 

 

 

 

 

0 Kudos
2 Replies
Steven_L_Intel1
Employee
620 Views

I moved this over to the Clustering forum where MPI experts can have a first look.

Artem_R_Intel1
Employee
620 Views

Hi Rahul,

As far as I see there's a message "RLIMIT_MEMLOCK too small" in the out.txt - this means that current system limits (mainly 'max locked memory') are insufficient.

You can check the system limits with 'ulimit -a'. You need to set 'max locked memory' to 'unlimited' (administrators permissions and cluster reboot may be required).

You can find the similar example in the Intel MPI Library Troubleshooting Guide.

Reply