Closed kasemir closed 5 years ago
We no longer see the issue with RHEL 7.6 and updated NVidia h/w and drivers, where nvidia-smi reports NVIDIA-SMI 418.56, Driver Version: 418.56, CUDA Version: 10.1 with Quadro P600
great!! should this ticket me closed?
Adding to the Linux woes #353, #367, we observe the following on RHEL 7.6 computers with NVIDIA graphics cards (nvidia-smi reports version 340.107).
On the computer, running multiple copies via
ssh
or a ThinLinc remote desktop is fine. Starting multiple instances at the physical desktop causes the second, 3rd or 4th copy to be very slow. That sluggish instance doesn't need to execute any display. Simply trying to open the "File" menu willWhen attaching JProfiler, the JVM doesn't consider itself using much CPU at those times. Instead, the UI thread is blocked in GlassScene.waitForRenderingToComplete(), basically calling the GTK graphics library.
Sometimes there are these types of messages in /var/log/messages suggesting a graphics driver problem:
After killing the problematic instance of phoebus, the X server might be stuck using a CPU core, and the only way to fix it is
Adding this to the JVM options, i.e. disabling accelerated graphics as in principle supported by the NVIDIA driver, seems to avoid the issue: