Troubleshooting guide

3. Enabling IP over Myrinet (Ethernet emulation) (OPTIONAL)

If you wish to run IP over Myrinet (ethernet emulation), the Linux command to enable IP

over MX is as follows:

/sbin/ifconfig myri0 <ip_address> up

where you must replace myri0 with the appropriate name (myri1, myri2, etc.) if you have

more than one Myrinet NIC per host.

VI. GM-2 Software Installation

GM-2 installation is performed in three easy steps:

1. Configuring and compiling GM-2.

2. Installing the GM-2 driver.

3. Enabling IP over Myrinet (ethernet emulation) (OPTIONAL)

For detailed installation instructions for GM-2 with FMS diagnostic monitoring, refer to

the FMS webpage (http://www.myri.com/scs/fms/#install-tarball).

These installation instructions assume that your cluster is not diskless. If you have a

diskless cluster, please contact help@myri.com for the proper installation procedure. We

currently recommend GM-2.0.26_Linux for clusters with PCIXD or PCIXF NICs, and

GM-2.1.26_Linux for clusters with PCIXE NICs. For full details, please refer to

http://www.myri.com/scs/#downloads. For purposes of this document, we will only

discuss the installation of GM-2.0.26_Linux. The installation of GM-2.1.26_Linux

follows the same procedure. After you have completed these installation steps, proceed to

Section VII. Testing/Validation (page 27).

1. Configuring and compiling GM-2.

Download GM-2

http://www.myri.com/ftp/pub/GM/gm-2.0.26_Linux.tar.gz

gunzip -c gm-2.0.26_Linux.tar.gz | tar xvf -

cd gm-2.0.26_Linux

./configure --with-linux=<linux-source-dir>

make

where <linux-source-dir> specifies the directory for the Linux kernel source. Note that

as of GM-2.0.15 and later, if the --with-linux= option is not specified, the default is

"/lib/modules/`uname -r`/build". This is the default location used by all major

distributions. The default in previous releases of GM was /usr/src/linux/.