Dear OpenMPI user, i'm trying to use collective dynamic rules with OpenMPi 1.4.2:
export OMPI_MCA_coll_tuned_use_dynamic_rules=1 export OMPI_MCA_coll_tuned_bcast_algorithm=1 My target is to test Bcast peformances using SKaMPI benchmark changing dynamic rules. But at runtime i get the follow error: [node003:05871] *** Process received signal *** [node003:05871] Signal: Segmentation fault (11) [node003:05871] Signal code: Address not mapped (1) [node003:05871] Failing at address: 0xcc [node003:05872] *** Process received signal *** [node003:05872] Signal: Segmentation fault (11) [node003:05872] Signal code: Address not mapped (1) [node003:05872] Failing at address: 0xcc [node003:05871] [ 0] /lib64/libpthread.so.0 [0x3be160e4c0] [node003:05871] [ 1] /gpfs/scratch/userinternal/cin0243a/openmpi-1.4.2/openmpi-1.4.2-install/lib/libmpi.so.0 [0x2accf7210145] [node003:05871] [ 2] /gpfs/scratch/userinternal/cin0243a/openmpi-1.4.2/openmpi-1.4.2-install/lib/libmpi.so.0 [0x2accf720ef16] [node003:05871] [ 3] /gpfs/scratch/userinternal/cin0243a/openmpi-1.4.2/openmpi-1.4.2-install/lib/libmpi.so.0 [0x2accf721fec9] [node003:05871] [ 4] /gpfs/scratch/userinternal/cin0243a/openmpi-1.4.2/openmpi-1.4.2-install/lib/libmpi.so.0(MPI_Bcast+0x171) [0x2accf71b81e1] [node003:05871] [ 5] ./skampi [0x409566] [node003:05871] [ 6] /lib64/libc.so.6(__libc_start_main+0xf4) [0x3be0e1d974] [node003:05871] [ 7] ./skampi [0x404e19] [node003:05871] *** End of error message *** [node003:05872] [ 0] /lib64/libpthread.so.0 [0x3be160e4c0] [node003:05872] [ 1] /gpfs/scratch/userinternal/cin0243a/openmpi-1.4.2/openmpi-1.4.2-install/lib/libmpi.so.0 [0x2b1959eb3145] [node003:05872] [ 2] /gpfs/scratch/userinternal/cin0243a/openmpi-1.4.2/openmpi-1.4.2-install/lib/libmpi.so.0 [0x2b1959eb1f16] [node003:05872] [ 3] /gpfs/scratch/userinternal/cin0243a/openmpi-1.4.2/openmpi-1.4.2-install/lib/libmpi.so.0 [0x2b1959ec2ec9] [node003:05872] [ 4] /gpfs/scratch/userinternal/cin0243a/openmpi-1.4.2/openmpi-1.4.2-install/lib/libmpi.so.0(MPI_Bcast+0x171) [0x2b1959e5b1e1] [node003:05872] [ 5] ./skampi [0x409566] [node003:05872] [ 6] /lib64/libc.so.6(__libc_start_main+0xf4) [0x3be0e1d974] [node003:05872] [ 7] ./skampi [0x404e19] [node003:05872] *** End of error message *** -------------------------------------------------------------------------- mpirun noticed that process rank 9 with PID 5872 on node node003ib0 exited on signal 11 (Segmentation fault). -------------------------------------------------------------------------- The same using other Bcast algorithm. Disabling dynamic rules, it works well. Maybe i'm using some wrong parameter setup? Thanks in advance. -- Ing. Gabriele Fatigati Parallel programmer CINECA Systems & Tecnologies Department Supercomputing Group Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy www.cineca.it Tel: +39 051 6171722 g.fatigati [AT] cineca.it
