Hi everybody,

I'd like to know of you if anyone has got this error during a solver operation...

I'm running CFX-4 on a PIII 800MHz with 512Mb RAM on a NT system.

When I run with double precision this error occurs at the first few iterations (about 30-40) in a geometry with no more than 20k cells. Running at single precision the solver uses to stop about 300-400 iterations.

And if the solver stopped once and if I resubmit the job, the whole system crashes on the blue screen which only Windows NT can give you.

The error is described below...

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CFX-4 | Solver |

CFX-4 | Solver | Using 1 CFX-4-SOLVER license.

CFX-4 | Solver | Please note: this license expires on 29-Apr-2002.

CFX-4 | Solver |

CFX-4 | Solver | forrtl: severe (157): Program Exception - access violation

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So, if anyone could supply me a hint, I'd be very thankful!

Regards,

cfd guy

(1). What is the flow problem you are trying to solve?

Looks like a memory problem. Have you tested the case on a PC with a complete different achitecture?

If 1) you are desperate, 2) the problem is not too large, and 3) not confidential, then send it and I will test it on our system to see if it is a hardware problem.

Regs, Gert-Jan

Hi people...

At first, I'd like to thank you for the suggestions...

Answering John's question, I say that doesn't matter the size of the problem. Even in the simplest problem you could imagine, i.e. incompressible, laminar, 2d with less than 100 cells, still crashes the system.

I agree with Mr. Gulik when he suspects that could be a memory problem. Even if I'm not using the CFX, the system crashes when I change a simple screensaver.

The funny part is that I had a similar problem in a different processor. I'm working here with PIII 800MHz and I got the same message error in cfx using a K7 800MHz, but in this computer the system never crashed, only the solver.

I contacted the computer's seller, but probably he will say that is a software problem, not a hardware one.

Well, anyway I'd like to thank you again! Regards,

cfd guy...

hi

some time evenn after you have stopped or closed the solver the license keeps running in the background,

then all you have to do is :

open tools in the CFX launcher:

licencing-licence -feature - remove user-remove -done

Regards,

joseph