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Hi phani sri,</div>
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<span style="color: rgb(0, 0, 0);">Try set `FFLAGS=-fallow-argument-mismatch` and `FCFLAGS=-fallow-argument-mismatch` and let us know if that helps.</span></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> phani sri via discuss <discuss@mpich.org><br>
<b>Sent:</b> Friday, October 17, 2025 8:07 AM<br>
<b>To:</b> discuss@mpich.org <discuss@mpich.org><br>
<b>Cc:</b> phani sri <phanisri123@gmail.com><br>
<b>Subject:</b> Re: [mpich-discuss] Error in MPI_IRECV</font>
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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</div>
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<div>Hi Gregor, I have checked this, the code is using mpi.h not mpif.h.</div>
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<div><font color="#0000ff"><b>Dr. D. P. S. L. Kameswari</b></font><b><br>
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<div dir="ltr" class="x_gmail_attr">On Fri, 17 Oct 2025, 5:56 pm Gregor Corbin via discuss, <<a href="mailto:discuss@mpich.org" target="_blank" rel="noreferrer">discuss@mpich.org</a>> wrote:<br>
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<p>Hi, <br>
</p>
<p>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. </p>
<p>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).
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<p>Cheers, <br>
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<p>Gregor Corbin</p>
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<div>On 17.10.25 13:30, phani sri via discuss wrote:<br>
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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, & </div>
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<div>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.</div>
<div>Thank you in advance.</div>
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<div>497 | Call MPI_IRECV(parentt(1,i),2,MPI_INTEGER, &<br>
| 2<br>
......<br>
633 | Call MPI_IRECV(buffert(1,i),buf_size, &<br>
| 1<br>
Error: Type mismatch between actual argument at (1) and actual argument at (2) (REAL(8)/INTEGER(4)).<br>
amr_migrate_tree_data.F90:642:23:<br>
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497 | Call MPI_IRECV(parentt(1,i),2,MPI_INTEGER, &<br>
| 2<br>
......<br>
642 | Call MPI_IRECV(newchildt(i),1,MPI_LOGICAL, &<br>
| 1<br>
Error: Type mismatch between actual argument at (1) and actual argument at (2) (LOGICAL(4)/INTEGER(4)).<br>
amr_migrate_tree_data.F90:717:23:<br>
<br>
513 | Call MPI_SSEND (new_loc(1,i),2,MPI_INTEGER, &<br>
| 2<br>
......<br>
717 | Call MPI_SSEND(buffer(1),buf_size,amr_mpi_real, &<br>
| 1<br>
Error: Type mismatch between actual argument at (1) and actual argument at (2) (REAL(8)/INTEGER(4)).<br>
amr_migrate_tree_data.F90:725:23:<br>
<br>
513 | Call MPI_SSEND (new_loc(1,i),2,MPI_INTEGER, &<br>
| 2<br>
......<br>
725 | Call MPI_SSEND(newchild(i),1,MPI_LOGICAL, &<br>
| 1<br>
Error: Type mismatch between actual argument at (1) and actual argument at (2) (LOGICAL(4)/INTEGER(4)).<br>
amr_migrate_tree_data.F90:260:25:<br>
<br>
260 | Call MPI_IRECV(buffert(1,i),buf_size, &<br>
| 1<br>
......<br>
497 | Call MPI_IRECV(parentt(1,i),2,MPI_INTEGER, &<br>
| 2<br>
Error: Type mismatch between actual argument at (1) and actual argument at (2) (REAL(8)/INTEGER(4)).<br>
amr_migrate_tree_data.F90:269:25:<br>
<br>
269 | Call MPI_IRECV(newchildt(i),1,MPI_LOGICAL, &<br>
| 1<br>
......<br>
497 | Call MPI_IRECV(parentt(1,i),2,MPI_INTEGER, &<br>
| 2<br>
Error: Type mismatch between actual argument at (1) and actual argument at (2) (LOGICAL(4)/INTEGER(4)).<br>
amr_migrate_tree_data.F90:330:25:<br>
<br>
330 | Call MPI_SSEND(buffer(1),buf_size,amr_mpi_real, &<br>
| 1<br>
......<br>
513 | Call MPI_SSEND (new_loc(1,i),2,MPI_INTEGER, &<br>
| 2<br>
Error: Type mismatch between actual argument at (1) and actual argument at (2) (REAL(8)/INTEGER(4)).<br>
amr_migrate_tree_data.F90:338:25:<br>
<br>
338 | Call MPI_SSEND(newchild(i),1,MPI_LOGICAL, &<br>
| 1<br>
......<br>
513 | Call MPI_SSEND (new_loc(1,i),2,MPI_INTEGER, &<br>
| 2<br>
Error: Type mismatch between actual argument at (1) and actual argument at (2) (LOGICAL(4)/INTEGER(4)).<br>
amr_restrict_ec_genorder.F90:310:37:</div>
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<div><font color="#0000ff"><b>Dr. D. P. S. L. Kameswari</b></font><b><br>
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