Ansys2021R1 ansys211 immediately segfaults on RHEL8
payerle
Member Posts: 5
I am a sysadmin trying to install Ansys2021R1 (fluent, etc) on a RHEL8 system. The installation proceeds without error (once I install libnsl package for libnsl.so.1), but after installation when I invoke the ansys211 command I immediately get a segfault. E.g.
-------------------
rhel8: cd /software/ansys/21.1/Linux64/v211/ansys/bin
rhel8: ./ansys211
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image PC Routine Line Source
libifcoremt.so.5 00007EFF086A1522 for__signal_handl Unknown Unknown
libpthread-2.28.s 00007EFECE8C4DD0 Unknown Unknown Unknown
libc-2.28.so 00007EFECC0E72A6 strtok_r Unknown Unknown
libmpi.so.12.0 00007EFECB0E2591 __I_MPI___intel_s Unknown Unknown
libmpi.so.12.0 00007EFECAFA48F5 Unknown Unknown Unknown
libmpi.so.12.0 00007EFECAFA7604 Unknown Unknown Unknown
libmpi.so.12.0 00007EFECAF4B14A Unknown Unknown Unknown
libmpi.so.12.0 00007EFECAF48D68 PMPI_Init_thread Unknown Unknown
libansys.so 00007EFEE3FB64F7 cMPI_Init_thread Unknown Unknown
libansys.so 00007EFEE39EABA2 cansMPI_Init_thre Unknown Unknown
libansys.so 00007EFEE39EB394 ansmpi_cinit_ Unknown Unknown
libansys.so 00007EFEE39EB55F ansmpiinitialize_ Unknown Unknown
libansys.so 00007EFEE3CA96B5 Unknown Unknown Unknown
ansys.e 0000000000416DF9 Unknown Unknown Unknown
ansys.e 00000000004102E8 MAIN__ Unknown Unknown
ansys.e 00000000004101E2 main Unknown Unknown
libc-2.28.so 00007EFECC0806A3 __libc_start_main Unknown Unknown
ansys.e 00000000004100F9 Unknown Unknown Unknown
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image PC Routine Line Source
libifcoremt.so.5 00007F09D4653522 for__signal_handl Unknown Unknown
libpthread-2.28.s 00007F099A876DD0 Unknown Unknown Unknown
libc-2.28.so 00007F09980992A6 strtok_r Unknown Unknown
libmpi.so.12.0 00007F0997094591 __I_MPI___intel_s Unknown Unknown
libmpi.so.12.0 00007F0996F568F5 Unknown Unknown Unknown
libmpi.so.12.0 00007F0996F59604 Unknown Unknown Unknown
libmpi.so.12.0 00007F0996EFD14A Unknown Unknown Unknown
libmpi.so.12.0 00007F0996EFAD68 PMPI_Init_thread Unknown Unknown
libansys.so 00007F09AFF684F7 cMPI_Init_thread Unknown Unknown
libansys.so 00007F09AF99CBA2 cansMPI_Init_thre Unknown Unknown
libansys.so 00007F09AF99D394 ansmpi_cinit_ Unknown Unknown
libansys.so 00007F09AF99D55F ansmpiinitialize_ Unknown Unknown
libansys.so 00007F09AFC5B6B5 Unknown Unknown Unknown
ansys.e 0000000000416DF9 Unknown Unknown Unknown
ansys.e 00000000004102E8 MAIN__ Unknown Unknown
ansys.e 00000000004101E2 main Unknown Unknown
libc-2.28.so 00007F09980326A3 __libc_start_main Unknown Unknown
ansys.e 00000000004100F9 Unknown Unknown Unknown
I am unsure how to proceed past this. Any assistance/suggestions would be appreciated.
We recently upgraded from RHEL6 to RHEL8, and my users are chomping at the bit for an Ansys version that runs on RHEL8 (as 2021R1 is supposed to as per https://www.ansys.com/-/media/ansys/corporate/files/pdf/solutions/it-professionals/platform-support/platform-support-by-application-product-2021-r1.pdf).
Answers
@payerle Have you confirmed all prerequisites as listed in our installation guide?
https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v211/en/installation/unix_platform_libraries.html
My apologies for the late response.
All prerequisites listed in the aforementioned URL are installed on the system, and the same segfault is still occurring.
@payerle The same issue occurs if you try launching from a directory outside the install, such as from your $HOME?
cd $HOME
/software/ansys/21.1/Linux64/v211/ansys/bin/ansys211
What do you get if you try running
/software/ansys/21.1/Linux64/v211/ansys/bin/launcher or launcher211
I am confused by your comment. Are you saying that I should or that I should not launch ansys211 from the installation directory?
Normally, I (and my users) would be launching from a directory outside the installation directory.
I have confirmed that for running the ansys211 command, I get a segfault when launching from either $HOME or the installation directory; e.g.
cd $HOME; /software/ansys/21.1/Linux64/v211/ansys/bin/ans211
will segfault, and
cd /software/ansys/21.1/Linux64/v211/ansys/bin; /software/ansys/21.1/Linux64/v211/ansys/bin/ans211
will segfault.
I get a bit further with the launcher script; in this case the window "initializing the launcher" appears, and shortly afterwards I get a popup error about not being able to connect to any license servers. I do not maintain the license servers here, but am contacting the owner of the license server to see if the ansys license installed supports 21.1 (I am able to connect to the license server port via telnet from the system in question, so not a firewall or other network issue).
Note also the I receive the error
/software/ansys/21.1/Linux64/v211/licensingclient/linx64/ansyscl: symbol lookup error: /usr/lib64/libk5crypto.so.3: undefined symbol: EVP_KDF_ctrl, version OPENSSL_1_1_1b
in the console. I am not sure if this is causing the licesning issue or not, but it appears to be due to Ansys shipping its own version of libcrypto.so, but relying on the system installed libk5crypto.so. The current RHEL8 version of libk5crypto.so includes some new symbols found in the system libcrypto.so, but not in the version shipped by Ansys (please see https://bugzilla.redhat.com/show_bug.cgi?id=1829790 which discusses similar issues in other proprietary software packages).
@payerle Hi! I wonder if you solved the problem with /usr/lib64/libk5crypto.so.3: undefined symbol: EVP_KDF_ctrl, version OPENSSL_1_1_1b? We have exactly the same but on CentOS 8.2. ANSYS could not provide me a satisfactory answer because CentOS 8.2 is not officially supported yet. It seems that we overcame other problems with installation, but this one persists. I would appreciate any help, solution like with Matlab did not work.