Very slow after SNAP Performance Confiuration Optimization

snap
#1

When I ran SNAP S2 resampling to 10m it was time cunsuming. I tried the SNAP Performance Confiuration Optimization utility and clicked the ‘compute’ button to optimise the system configuration, and got this:

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QQ图片202003061630221960×541 95.6 KB

Then I restarted SNAP and ran the S2 resampler and found it was much slower then ever. I checked the CPU and memory load ,CPU ran at more than 90%.
I clicked ‘reset’ button of SNAP Performance Confiuration Optimization but it seemed don’t return to the original configuration of program installation.

#2

how much RAM does your machine have?

It was reported that half the size of the available RAM is a good value in one case: S1 TOPS Coregistration error - Java heap space error?

#3

My workstaion has 128 GB RAM and Intel Xeon 6226CPU @2.7GHz (2 processors)

#4

then 126900m is too much. Enter -XmX=100G for a first try.

#5

Even that might be too much. I’d try a couple of runs with the max heap set in log steps down to 8 GB (e.g. 120G, 64G, 32G, 16G, 8G).

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