单CPU16核的机器上，不能运行mpiexec -n 2 ./pL吗？

[qq_39141418]

我的电脑是单CPU16核的机器，在终端里运行mpiexec -n 1 ./pL没有任何问题，但是我想运行mpiexec -n 2 ./pL就会提示下面的错误，高手可否指定一下？

gxming@gxming-Precision-M4800:~/Test_SED_meander_4$ mpiexec -n 2 ./pL
Program received signal SIGSEGV: Segmentation fault - invalid memory reference.
Backtrace for this error:
Program received signal SIGSEGV: Segmentation fault - invalid memory reference.
Backtrace for this error:
#0 0x7F5F5F538777
#1 0x7F5F5F538D7E
#2 0x7F5F5EC71CAF
#3 0x51D6A4 in libmetis__isum at gklib.c:18 (discriminator 2)
#0 0x7F983A17F777
#1 0x7F983A17FD7E
#2 0x7F98398B8CAF
#4 0x4F47AD in libparmetis__CheckInputsPartGeomKway at weird.c:151
#5 0x4EE4A1 in ParMETIS_V3_PartGeomKway at gkmetis.c:38
#6 0x4D25F1 in parmetis_v3_partgeomkway_ at frename.c:45
#7 0x42CB1C in partition_hgrid_
#8 0x441456 in schism_init_
#3 0x51D6A4 in libmetis__isum at gklib.c:18 (discriminator 2)
#9 0x41B855 in schism_main_
#4 0x4F47AD in libparmetis__CheckInputsPartGeomKway at weird.c:151
#5 0x4EE4A1 in ParMETIS_V3_PartGeomKway at gkmetis.c:38
#6 0x4D25F1 in parmetis_v3_partgeomkway_ at frename.c:45
#7 0x42CB1C in partition_hgrid_
#8 0x441456 in schism_init_
#9 0x41B855 in schism_main_

===================================================================================
= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
= EXIT CODE: 139
= CLEANING UP REMAINING PROCESSES
= YOU CAN IGNORE THE BELOW CLEANUP MESSAGES
===================================================================================
YOUR APPLICATION TERMINATED WITH THE EXIT STRING: Segmentation fault (signal 11)
This typically refers to a problem with your application.
Please see the FAQ page for debugging suggestions

[tianfang]

https://wiki.mpich.org/mpich/index.php/Frequently_Asked_Questions his means that the application has exited with a segmentation fault. This is typically an error in the application code, not in MPICH. We recommend debugging your application using a debugger such as "ddd", "gdb", "totalview" or "padb" if you run into this error. See the FAQ entry on debugging for more details. https://stackoverflow.com/questions/39459173/mpi-segmentation-fault-exit-code-139

[molin0000]

段错误，应该是你运行的程序的问题，试着换一个简单的小程序试试