[mpich-discuss] Error in MPI_IRECV

[phani sri]

Hi Gregor, I  have checked this, the code is using mpi.h not mpif.h.

*Dr. D. P. S. L. Kameswari*


On Fri, 17 Oct 2025, 5:56 pm Gregor Corbin via discuss, <discuss at mpich.org>
wrote:

> Hi,
>
> let me guess: this code uses `include mpif.h` and is compiled with
> gfortran. If so, try to add `-fallow-argument-mismatch' to your compiler
> flags.
>
> Explanation: With the include file, there are no explicit interfaces and
> the compiler generates an implicit interface from the call to `MPI_IRECV`.
> Having two calls with different argument types is an error since some gcc
> version (10 IIRC).
>
> Cheers,
>
> Gregor Corbin
>
>
> On 17.10.25 13:30, phani sri via discuss wrote:
>
> Hi all, I am trying to run FLASH4. 8, where I am getting the following
> error. Can someone please, suggest to me why this error is coming. Thank
> you in advance. 497 |            Call MPI_IRECV(parentt(1,i),2,MPI_INTEGER,
>                &
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> Hi all, I am trying to run FLASH4.8, where I am getting the following
> error. Can someone please, suggest to me why this error is coming.
> Thank you in advance.
> 497 |            Call MPI_IRECV(parentt(1,i),2,MPI_INTEGER,
>  &
>       |                          2
> ......
>   633 |         Call MPI_IRECV(buffert(1,i),buf_size,
>    &
>       |                       1
> Error: Type mismatch between actual argument at (1) and actual argument at
> (2) (REAL(8)/INTEGER(4)).
> amr_migrate_tree_data.F90:642:23:
>
>   497 |            Call MPI_IRECV(parentt(1,i),2,MPI_INTEGER,
>    &
>       |                          2
> ......
>   642 |         Call MPI_IRECV(newchildt(i),1,MPI_LOGICAL,
>   &
>       |                       1
> Error: Type mismatch between actual argument at (1) and actual argument at
> (2) (LOGICAL(4)/INTEGER(4)).
> amr_migrate_tree_data.F90:717:23:
>
>   513 |               Call MPI_SSEND (new_loc(1,i),2,MPI_INTEGER,
>     &
>       |                              2
> ......
>   717 |         Call MPI_SSEND(buffer(1),buf_size,amr_mpi_real,
>    &
>       |                       1
> Error: Type mismatch between actual argument at (1) and actual argument at
> (2) (REAL(8)/INTEGER(4)).
> amr_migrate_tree_data.F90:725:23:
>
>   513 |               Call MPI_SSEND (new_loc(1,i),2,MPI_INTEGER,
>     &
>       |                              2
> ......
>   725 |         Call MPI_SSEND(newchild(i),1,MPI_LOGICAL,
>    &
>       |                       1
> Error: Type mismatch between actual argument at (1) and actual argument at
> (2) (LOGICAL(4)/INTEGER(4)).
> amr_migrate_tree_data.F90:260:25:
>
>   260 |           Call MPI_IRECV(buffert(1,i),buf_size,
>      &
>       |                         1
> ......
>   497 |            Call MPI_IRECV(parentt(1,i),2,MPI_INTEGER,
>    &
>       |                          2
> Error: Type mismatch between actual argument at (1) and actual argument at
> (2) (REAL(8)/INTEGER(4)).
> amr_migrate_tree_data.F90:269:25:
>
>   269 |           Call MPI_IRECV(newchildt(i),1,MPI_LOGICAL,
>     &
>       |                         1
> ......
>   497 |            Call MPI_IRECV(parentt(1,i),2,MPI_INTEGER,
>    &
>       |                          2
> Error: Type mismatch between actual argument at (1) and actual argument at
> (2) (LOGICAL(4)/INTEGER(4)).
> amr_migrate_tree_data.F90:330:25:
>
>   330 |           Call MPI_SSEND(buffer(1),buf_size,amr_mpi_real,
>      &
>       |                         1
> ......
>   513 |               Call MPI_SSEND (new_loc(1,i),2,MPI_INTEGER,
>     &
>       |                              2
> Error: Type mismatch between actual argument at (1) and actual argument at
> (2) (REAL(8)/INTEGER(4)).
> amr_migrate_tree_data.F90:338:25:
>
>   338 |           Call MPI_SSEND(newchild(i),1,MPI_LOGICAL,
>      &
>       |                         1
> ......
>   513 |               Call MPI_SSEND (new_loc(1,i),2,MPI_INTEGER,
>     &
>       |                              2
> Error: Type mismatch between actual argument at (1) and actual argument at
> (2) (LOGICAL(4)/INTEGER(4)).
> amr_restrict_ec_genorder.F90:310:37:
>
>
>
> --
> *Dr. D. P. S. L. Kameswari*
>
>
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