Linux下Ansys安装与运行的常见问题

1. 打开Fluent/ICEM出现许可证错误

版本：22R1
权限：root安装至/usr/ansys_inc，普通用户使用
系统：CentOS 7

查看对应的日志文件 ~/.ansys/ansyscl.localhost.*.log：

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2024/01/08 23:10:12    INFO                ANSYSLI_CMD=/usr/ansys_inc/v221/licensingclient/linx64/ansyscl -acl 19510.29709 -nodaemon -log ~/.ansys/ansyscl.localhost.19510.29709.log
2024/01/08 23:10:12    INFO                ANSYSLI_INITIALIZATION_FILE='/usr/ansys_inc/shared_files/licensing/ansyslmd.ini'
2024/01/08 23:10:12    INFO                ANSYSLI_PRODORD_FILE='/usr/ansys_inc/shared_files/licensing/prodord/ansysli.prodord.xml'
2024/01/08 23:10:12    INFO                ANSYSLI_TIMEOUT_FLEXLM=15
2024/01/08 23:10:12    ERROR               /usr/ansys_inc/shared_files/licensing/ansyslmd.ini is invalid.
                Could not read option file /usr/ansys_inc/shared_files/licensing/ansyslmd.ini.
2024/01/08 23:10:12    ERROR               Exiting.

发现Ansys的许可证管理器无法正确读取配置文件，排除shared_files下的文件不存在等弱智原因后，可能和文件夹的权限有关系：

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# 查看文件权限信息
ls -lht /usr/ansys_inc/shared_files/

输出如下，文件的所有权为root，是导致许可证无法读取的原因：

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drwxr-xr-x. 9 root root 159 May 12  2023 licensing
drwxr-xr-x. 3 root root  20 Nov 13  2021 bin
drwxr-xr-x. 9 root root 112 Nov 13  2021 lib
drwxr-xr-x. 3 root root  20 Nov 13  2021 syslib

修改文件夹所有权为普通用户，以解决许可证文件访问问题：

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# 进入root
su
# 修改权限
chown $USER -R /usr/ansys_inc/shared_files

打开Fluent或ICEM，查看问题是否已解决。

2. 打开ICEM报错

终端输入icemcfd，报错如下：

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ICEM_ACN is "/usr/ansys_inc/v221/icemcfd/linux64_amd".
LD_LIBRARY_PATH is "/usr/ansys_inc/v221/icemcfd/linux64_amd/lib:/usr/ansys_inc/v221/icemcfd/linux64_amd/bin:/usr/ansys_inc/v221/icemcfd/linux64_amd/dif/iges:/usr/ansys_inc/v221/icemcfd/linux64_amd/../../Framework/bin/Linux64:/usr/ansys_inc/v221/icemcfd/linux64_amd/../../tp/IntelCompiler/2019.3.199/linx64/lib/intel64:/usr/ansys_inc/v221/icemcfd/linux64_amd/../../tp/qt_fw/5.9.6/Linux64/lib:/usr/ansys_inc/v221/icemcfd/linux64_amd/../../tp/hdf5/1_10_5/linx64/lib".
args = 
Window information: depth = 24
                    class = 4
visual depth = 24 class = 4
can't load font screen14, using variable
Signal 11 caught!
segmentation violation - exiting after doing an emergency save
Exiting...
Exit from ICEM CFD

解决方案，安装对应的字体文件：

CentOS
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yum install xorg-x11-fonts-*

Ubuntu

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apt-get install xfonts-75dpi xfonts-100dpi

3. Ubuntu打开Fluent报错

通常发生在新系统上第一次安装Ansys后，报错如下：

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/software/ansys_inc/V22R1/v221/fluent/bin/fluent: 69: [[: not found
/software/ansys_inc/V22R1/v221/fluent/bin/fluent: 813: [[: not found
/software/ansys_inc/V22R1/v221/fluent/bin/fluent: 836: [[: not found
/software/ansys_inc/V22R1/v221/fluent/bin/fluent: 838: [[: not found
/software/ansys_inc/V22R1/v221/fluent/fluent22.1.0/bin/fluent -r22.1.0
/software/ansys_inc/V22R1/v221/fluent/fluent22.1.0/bin/fluent: 112: [[: not found
/software/ansys_inc/V22R1/v221/fluent/fluent22.1.0/bin/fluent: 744: [[: not found
/software/ansys_inc/V22R1/v221/fluent/fluent22.1.0/bin/fluent: 1108: [[: not found

Ubuntu默认使用dash，确实一些shell特性，需要将其修改为bash：

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# 运行下面的命令，并在弹出的窗口中选择No
sudo dpkg-reconfigure dash

4. Ansys 23R1许可证管理器 Get System HostID Information报错

提示lmutil文件不存在，但是实际是有这个文件：

CentOS 7.6 手动运行lmutil，报错如下：

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/lib64/ld-lsb-x86-64.so.3: bad ELF interpreter: No such file or directory

解决方案：

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yum install redhat-lsb

Ubuntu 22.04 参考：

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sudo ln -s /lib64/ld-linux-x86-64.so.2 /lib64/ld-lsb-x86-64.so.3