CESM ‘’PMPI_ALLGATHERV(1072): BUFFERS MUST NOT BE ALIASED‘’ ERROR

[270995389@qq_com]

I am trying to use the reanalysis data to drive CESM. But it can't run, and the following error occurred. PMPI_Allgatherv(1072): Buffers must not be aliasedFatal error in PMPI_Allgatherv: Invalid buffer pointer, error stack:PMPI_Allgatherv(1124): MPI_Allgatherv(sbuf=0x7fff167e4748, scount=3, MPI_DOUBLE_PRECISION, rbuf=0x7fff167e4670, rcounts=0x7fff167e36f0, displs=0x7fff167e37f0, MPI_DOUBLE_PRECISION, comm=0x84000006) failedPMPI_Allgatherv(1072): Buffers must not be aliasedFatal error in PMPI_Allgatherv: Invalid buffer pointer, error stack:PMPI_Allgatherv(1124): MPI_Allgatherv(sbuf=0x7fff473610b8, scount=3, MPI_DOUBLE_PRECISION, rbuf=0x7fff47360ef0, rcounts=0x7fff4735ff70, displs=0x7fff47360070, MPI_DOUBLE_PRECISION, comm=0x84000006) failedPMPI_Allgatherv(1072): Buffers must not be aliasedFatal error in PMPI_Allgatherv: Invalid buffer pointer, error stack:PMPI_Allgatherv(1124): MPI_Allgatherv(sbuf=0x7fff5a308a28, scount=3, MPI_DOUBLE_PRECISION, rbuf=0x7fff5a3088f0, rcounts=0x7fff5a307970, displs=0x7fff5a307a70, MPI_DOUBLE_PRECISION, comm=0x84000006) failed Query a lot of web pages, and tried a lot of solutionsFor example, setting ‘setenv MPICH_NO_BUFFER_ALIAS_CHECK TRUE’ and ‘setenv I_MPI_COMPATIBILITY 4’ in env_mach_specific does not solve the problem.Setting ‘export MP_EUIDEVELOP=min’ in the environment variable still does not solve. Very distressed, is there any expert who knows other solutions?

 

[jedwards]

What version of the model?  What compiler?  What mpi?  This looks like an incompatibility between a particular mpi library and an older version of cesm.  If you can you may want to try a different mpi library.

 

[270995389@qq_com]

Thank you for your reply.My modulefiles are : cesm/1.2.2    MPI/Intel/MPICH/3.1-icc13-dyn     intel-compilers/13.0.0  netcdf/4.3.2/02-CF-13I can use this set of configurations to run a case without MERRA nudging.Do I need to compile another version of MPI?

 

[jedwards]

You can try a different version of mpi or you can fix the aliasing leading to the error.   

 

[jedwards]

Try setting I_MPI_COMPATIBILITY=4 in the environment.

 

[270995389@qq_com]

export I_MPI_COMPATIBILITY=4 in .bashrc does not work 

 

[270995389@qq_com]

I have tried mpi of ten versions of mpich-1.2.1, 1.5rc1, 3.0.1, 3.1.4, 3.1rc1, 3.2, 3.2a1, 3.3, etc., which can't solve this problem. Is there any other way?many thanks

 

[alisonfangdada@icloud_com]

Hello, I have encountered the same problem. coudn't run FSDCHM with MERRA meterological data, but other cases with different compsets is OK. How did you solve it?