Hello,
I work on Code_Saturne on a local computer and on a cluster. But when I execute a calculation on the cluster, I have problem of interruption at 4,33Go and it doesn't an error but it stop just the calcul and with the same parameters in my xml on my local computer, the calcul is completed.
I search the reason of this problem. I made different tests to analyze this problem. this limitation may be a problem of capacity for a cluster in 32bit because 2 32 is equal of 3,3Go.
Have you got the same conclusion or another?
Have you got a solution for this problem or just the calcul suite?
Thank for your answer.
Best Regards
Sébastien
Problem of capacity in a calculation on a cluster
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Yvan Fournier
Re: Problem of capacity in a calculation on a cluster
Hello,
Yes, this is possible, if your cluster uses 32-bit kernels and your workstations is in 64-bits.
Still, the memory limit is that of local processes, so if you distribute a calculation over more processors, the memory usage of each is reduced, and may drop under 3 Gb.
So if you run on more processors on the cluster, you error may be due to something else. If you are simply using the cluster as a group of workstations with a batch system, this may explain your problem.
Best regards,
Yvan
Yes, this is possible, if your cluster uses 32-bit kernels and your workstations is in 64-bits.
Still, the memory limit is that of local processes, so if you distribute a calculation over more processors, the memory usage of each is reduced, and may drop under 3 Gb.
So if you run on more processors on the cluster, you error may be due to something else. If you are simply using the cluster as a group of workstations with a batch system, this may explain your problem.
Best regards,
Yvan