Description
System information including:
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OpenCoarrays Version: 2.9.2
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Fortran Compiler: 14.2
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C compiler used for building lib:
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Installation method: package manager
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All flags & options passed to the installer
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Output of
uname -a: Linux lubuntu 6.14.0-15-generic Check Machine Type for Navier-Stokes Tests #15-Ubuntu SMP PREEMPT_DYNAMIC Sun Apr 6 15:05:05 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux -
MPI library being used: 4.2.1
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Machine architecture and number of physical cores:
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Version of CMake:
To help us debug your issue please explain:
What you were trying to do (and why)
Running hello World.
I have been trying to install a recent OpenCoarrays version on both Fedora 42 and Ubuntu, and always get the same result; have tried multiple compiler/MPI combinations including gnu 14.1.0 14.2.0 mpich 4.2.2 4.3.0 always with the same result. If I build with cmake and then do make test, the tests declare PASS, but when I go to the directory containing the executables I get the same as below.
The output below is what I get on ubuntu 24.04 installing the default version from the apt package manager, but the outcome is identical.
Is there anything particularly silly I am doing?
Thanks
What happened (include command output, screenshots, logs, etc.)
Hello from image 1 out of 4
Hello from image 2 out of 4
Hello from image 3 out of 4
Hello from image 4 out of 4
Abort(873553679) on node 0: Fatal error in internal_Comm_free: Other MPI error, error stack:
internal_Comm_free(29495)......: MPI_Comm_free(comm=0x5f953b8910ac) failed
MPIR_Comm_free_impl(823).......:
MPIR_Comm_delete_internal(1267): Communicator (handle=84000002) being freed has 3 unmatched message(s)
Abort(605118223) on node 2: Fatal error in internal_Comm_free: Other MPI error, error stack:
internal_Comm_free(29495)......: MPI_Comm_free(comm=0x5b4303df10ac) failed
MPIR_Comm_free_impl(823).......:
MPIR_Comm_delete_internal(1267): Communicator (handle=84000001) being freed has 3 unmatched message(s)
Abort(403791631) on node 3: Fatal error in internal_Comm_free: Other MPI error, error stack:
internal_Comm_free(29495)......: MPI_Comm_free(comm=0x5aa4d58d90ac) failed
MPIR_Comm_free_impl(823).......:
MPIR_Comm_delete_internal(1267): Communicator (handle=84000001) being freed has 3 unmatched message(s)
Abort(873553679) on node 1: Fatal error in internal_Comm_free: Other MPI error, error stack:
internal_Comm_free(29495)......: MPI_Comm_free(comm=0x64ded0dd10ac) failed
MPIR_Comm_free_impl(823).......:
MPIR_Comm_delete_internal(1267): Communicator (handle=84000001) being freed has 3 unmatched message(s)
Error: Command:
/usr/bin/mpiexec -n 4 ./hello
failed to run.
What you expected to happen
No MPI error on exit
Step-by-step reproduction instructions to reproduce the error/bug
caf -o hello hello.f90
cafrun -np4 ./hello
program main
use iso_fortran_env
implicit none
integer :: me, np, img
integer, parameter :: maxl=80, root=1
character(len=maxl) :: greeting[*]
me = this_image()
np = num_images()
write(greeting,) "Hello from image ",me," out of ",np
sync all
if (me == root) then
do img = 1, np
write(,*) greeting[img]
end do
end if
sync all
end program main