Re: GM problem with different kernel version

Patrick Geoffray <[email protected]> Wed, 31 Mar 2004 00:40:55 -0500
Newsgroups gmane.network.myrinet.general
Organization Myricom, Inc.
Message-ID <[email protected]>
Hi,

Zaheerul Arefeen wrote:
> what would be solution for my problem? I dont like to

You need to pass the location of the configured kernel source tree (or 
configured kernel headers) when configuring GM with the 
"--with-linux=<path>" flag, the default location being /usr/scr/linux. 
If you compile GM for a given kernel, it will not work on a different 
one (it may be safe, but there is no way to know for all kernel 
versions, so it is restricted by precaution).

So, if your front-end does not have Myrinet, that's easy: either mount 
or copy the 2.4.18 kernel source tree on the head node and use it to 
compile GM: it will work on all of the compute nodes.
If the front-end does have Myrinet, you can either get the front-end and 
the compute nodes with the same kernel (not only versions, but some 
settings like bigmem, smp, etc, must be the same) and you build one GM 
for all, or you build one GM for the front-end and one for the compute 
nodes passing the right kernel source location at configure.

Patrick
-- 

Patrick Geoffray
Myricom, Inc.
http://www.myri.com