Chelsio Communications Chelsio T5 Guia do Utilizador descarregar pdf (Página 70)

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Chapter IV. iWARP (RDMA)

Chelsio T5/T4 Unified Wire For Linux Page 70

4.2. Enabling various MPIs

4.2.1. DAPL Library configuration for Intel MPI and Platform MPI

To run Intel MPI over RDMA interface, DAPL 2.0 should be set up as follows:

Enable the Chelsio device by adding an entry at the beginning of the /etc/dat.conf file for the

Chelsio interface. For instance, if your Chelsio interface name is eth2, then the following line

adds a DAT version 2.0 device named “chelsio2" for that interface:

chelsio2 u2.0 nonthreadsafe default libdaplofa.so.2 dapl.2.0 "eth2 0" ""

4.2.2. Setting shell for Remote Login

User needs to set up authentication on the user account on all systems in the cluster to allow

user to remotely logon or executing commands without password.

Quick steps to set up user authentication:

i. Change to user home directory

[root@host]# cd

ii. Generate authentication key

[root@host]# ssh-keygen -t rsa

iii. Hit [Enter] upon prompting to accept default setup and empty password phrase

iv. Create authorization file

[root@host]# cd .ssh

[root@host]# cat *.pub > authorized_keys

[root@host]# chmod 600 authorized_keys

v. Copy directory .ssh to all systems in the cluster

[root@host]# cd

[root@host]# scp -r /root/.ssh remotehostname-or-ipaddress:

1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 459 460

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