Hi, I have built openmpi-1.6.2rc1 and get the following error.
tyr small_prog 123 mpicc -showme cc -I/usr/local/openmpi-1.6.2_32_cc/include -mt -L/usr/local/openmpi-1.6.2_32_cc/lib -lmpi -lm -lkstat -llgrp -lsocket -lnsl -lrt -lm tyr small_prog 124 mpiexec -np 2 -host tyr init_finalize Hello! Hello! tyr small_prog 125 mpiexec -np 2 -host sunpc4 init_finalize key_from_blob: remaining bytes in key blob 81 Hello! Hello! tyr small_prog 126 mpiexec -np 2 -host tyr,sunpc4 init_finalize [tyr:23956] *** Process received signal *** [tyr:23956] Signal: Segmentation Fault (11) [tyr:23956] Signal code: Address not mapped (1) [tyr:23956] Failing at address: 18 /.../openmpi-1.6.2_32_cc/lib/libopen-rte.so.4.0.0:0x15434c /lib/libc.so.1:0xcad04 /lib/libc.so.1:0xbf3b4 /lib/libc.so.1:0xbf59c /.../openmpi-1.6.2_32_cc/lib/libopen-rte.so.4.0.0:orte_rmaps_base_get_target_nodes+0x1cc [ Signal 11 (SEGV)] /.../openmpi-1.6.2_32_cc/lib/openmpi/mca_rmaps_round_robin.so:0x1ec8 /.../openmpi-1.6.2_32_cc/lib/libopen-rte.so.4.0.0:orte_rmaps_base_map_job+0xe4 /.../openmpi-1.6.2_32_cc/lib/libopen-rte.so.4.0.0:orte_plm_base_setup_job+0xc4 /.../openmpi-1.6.2_32_cc/lib/openmpi/mca_plm_rsh.so:orte_plm_rsh_launch+0x1b0 /.../openmpi-1.6.2_32_cc/bin/orterun:orterun+0x16a8 /.../openmpi-1.6.2_32_cc/bin/orterun:main+0x24 /.../openmpi-1.6.2_32_cc/bin/orterun:_start+0xd8 [tyr:23956] *** End of error message *** Segmentation fault Do you have any ideas or suggestions? As I wrote in my email from yesterday, I had to add "#include <math.h>" into file openmpi-1.6.2rc1/ompi/contrib/vt/vt/extlib/otf/tools/otfaux/otfaux.cpp to have a prototype for function "rint" in line 834. Thank you very much for any help in advance. Kind regards Siegmar