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Hi Adam,
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<div>thank you for the reply.</div>
<div>I was aware that this might be the problem, but I don’t know how to check it.</div>
<div>How can I know which is the version of the compiler used for building the mpi library?</div>
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<div>---------------------------------------------</div>
Dr <b>Mattia Cipriani</b>, PhD</div>
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<div>Il giorno 7 feb 2024, alle ore 11:30, Reyes, Adam <adam.reyes@rochester.edu> ha scritto:</div>
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Hi Mattia,
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<div>The warning suggests that compiler that you’re using for FLASH is different from the one used to compile the openmpi library. You could check that “mpif90 --version” returns the same GCC 7.3.0 version your warning says that openmpi was built with.</div>
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<div>It’s difficult to say if this is related to your seg fault or not without more context about where the error is occurring, either from the stdout or the log file.<br id="lineBreakAtBeginningOfMessage">
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*********************************************<br>
Adam Reyes</div>
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<span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;"> </span><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;">(he
/ him / his)</span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;">
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<div>On Feb 7, 2024, at 11:06 AM, Mattia Cipriani <mattia.cipriani@enea.it> wrote:</div>
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Hi,
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</div>
<div>I am recently experiencing some issues with FLASH 4.7.1 simulations, after updating from FLASH 4.5.</div>
<div>I am using the same site-specific Makefile.h which was working before, since the configuration of the cluster did not change from the past.</div>
<div>Also the compilers are the same as before.</div>
<div>I use the setup script to collect all the needed files and objects for compiling the simulation and then I use make to compile it.</div>
<div>At the end of the execution of make, I get the following warning</div>
<div><br>
</div>
<div>/bin/ld: warning: libgfortran.so.4, needed by /usr/mpi/gcc730/openmpi-3.1.2/lib/libmpi_usempif08.so, may conflict with libgfortran.so.3</div>
<div><br>
</div>
<div>If I run the flash4 executables with mpirun it starts to run ok, but at some apparently random point of the simulation I get a segmentation fault error.</div>
<div><br>
</div>
<div>I am wondering if the warning from make could be the reason for the segmentation fault error.</div>
<div>How can I solve the warning?</div>
<div>I know it is a linux-related question rather than a FLASH problem, but I would be glad if you can help or at least give me a feedback if the segmentation fault error might be due to the warning from make.</div>
<div><br>
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<div>Best regards,</div>
<div>Mattia</div>
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