Installing v8.1 with v8.0

[c4hpcawe]

Hi all.

Upon trying to install version 8.1 on our cluster this afternoon, I found that the installation required me to uninstall version 8.0 first.

This is bad news. We have many users who will want to continue using version 8.0 and MPI environments built upon it while we phase in and evaluate the latest version.
In fact, we still have users who work with MPI tools based upon the v7.1 compilers...

Removal of the previous version was never a pre-requisite for versions 5, 6, 7 and 8.0. Why has this changed now?

With the exception of that pesky soft-link: /lib/ifcore_msg.cat, I thought everything else was self-contained in the compiler installation directory...(?)
Anyone know any different?

If anyone has any experience of maintaining v8.0 and v8.1 at the same time, I would be grateful for your advice.

Thanks,

Jim

[Steven_L_Intel1]

As for the why, 8.1 was deemed an update to 8.0 and replaced 8.0. However, we have heard enough from our users on this that we'll probably never have that requirement again.

What I would suggest is to follow the instructions for "non-root" install of the 8.1 compiler to "install" it somewhere else. You will have to edit the ifort and ifortvars scripts to replace with the path where you installed, but this does work.

[c4hpcawe]

Many thanks for the quick response Steve.

I'll give that a go.

Jim

[Keith_R_]

I have just managed to install ifort 8.1 alongside 8.0 on a Mandrake
linix 10.0 system. There's an easier way than Steve suggests,
(the "non-root" install which involves manually unpacking the rpm)
namely to simply rebase the rpm.

rpm -ivh --relocate /opt/intel_fc_80=/opt/intel_fc_81 intel-ifort8-8.1-019.i386.rpm

This installs in /opt/intel_fc_81. Then you have to copy the licence
file across into /opt/intel_fc_81/license, and edit the script files.


perl -pi -e 's@@/opt/intel_fc_81@g' ifc ifort ifc.cfg ifort.cfg ifortvars.csh ifortvars.sh uninstall.sh

and finally change your shell paths, etc by sourcing the appropriate
ifortvars script.