Hi phani sri,

Try set `FFLAGS=-fallow-argument-mismatch` and `FCFLAGS=-fallow-argument-mismatch` and let us know if that helps.

Hui

---

From: phani sri via discuss <discuss@mpich.org>
Sent: Friday, October 17, 2025 8:07 AM
To: discuss@mpich.org <discuss@mpich.org>
Cc: phani sri <phanisri123@gmail.com>
Subject: Re: [mpich-discuss] Error in MPI_IRECV

 

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@ mpich. org> wrote: Hi, let me guess: this code uses `include mpif. h` and is compiled

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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@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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