MATLAB DISTRIBUTED COMPUTING SERVER 4 - SYSTEM ADMINISTRATORS GUIDE Manuel d'utilisateur télécharger pdf (Page 43)

Troubleshoot Common Problems

- If you installed only the Parallel Computing T oolbox product, and you

are attempting to run a worker on the same machine, you will receive

this error because the MATLAB Distributed Computing Server product

is not installed, and therefore the worker cannot obtain a license.

Memory Errors on UNIX Operating Systems

If the number of threads created by the server services on a machine running

a UNIX operating s ystem exceeds the limitation set by the

maxproc value, the

services fail and generate an out-of-memory error. Check your

maxproc value

on a UNIX operating system with the

limit command. (Different versions of

UNIX software might have different names for this property.)

Run Server Processes on Windows Network

Installation

Many networks are configu red not to allow LocalSystem to have access to

UNC or mapped network shares. In this case, run the m dce process under a

different user with rights to log o n as a service. See “Set the User” on page

2-14.

Required Ports

With Job Manager

BASE_PORT. The mdce_def file specifies and describes the ports required

by the job manager and all workers. See the following file in the MATLAB

installation used for each cluster proc ess:

•

matlabroot/toolbox/distcomp/bin/mdce_def.sh (on UNIX operating

systems)

•

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

operating systems)

Communicating Jobs. On worker machines running a UNIX operating

system, the number of ports required by MPICH f or the running of

communicating jobs ranges from

BASE_PORT + 1000 to BA SE_PORT + 2 000.

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MATLAB DISTRIBUTED COMPUTING SERVER 4 - SYSTEM ADMINISTRATORS GUIDE Manuel d'utilisateur Page 43