I talked to them and got an email and it was actually memory usage. Sorry, not CPU.
I do use much of memory, maybe 0.5G, not a big deal actually, but this was the first time I was in trouble. I do not use fork. So probably I need to verify available memory?

In reply to Re^2: CPU usage on external UNIX host by vit
in thread CPU usage on external UNIX host by vit

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