MATLAB DISTRIBUTED COMPUTING SERVER 4 - SYSTEM ADMINISTRATORS GUIDE Manuel d'utilisateur télécharger pdf (Page 36)

2 Network Administration

Required Ports

Using a Job Manager

BASE_PORT. The ports required by the job manager and all workers are

specified and described in the

mdce_def file. See the following file in the

MATLAB installation used fo r e ach cluster process:

matlabroot/toolbox/bin/distcomp/mdce_def.sh (Unix)

matlabroot\toolbox\bin\distcomp\mdce_def.bat (Windows)

Parallel Jobs. The range of ports on UNIX worker machines required by

MPICH for the running of parallel jobs is from

BASEPORT + 1 000 up to

BASE_PORT + 2000.

Ephemeral Ports. If y ou use the job manager on a Windows cluster, you

must make sure that a large number of ephemeral TCP ports are available.

By default, the maximum valid ephemeral TCP port number on a Windows

operating system is 5000, but transfers of large data sets m ight fail if this

setting is not increased. In particular, if y ou r cluster has 32 or more work ers,

you should increase the maximum valid ephemeral TCP port number, with

the following procedure:

1 Start the Registry Editor.

2 L ocate the following subkey in th e registry, and t hen click Parameters :

HKEY_LOCAL

_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

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MATLAB DISTRIBUTED COMPUTING SERVER 4 - SYSTEM ADMINISTRATORS GUIDE Manuel d'utilisateur Page 36