erosita-forum

Hello,
I'm trying to follow the steps in this page to create a background map of a number of tiles I've download covering a 3deg-radius region of the sky.

An I'm stuck at the creation of the exposure map as it seems to be taking forever (~a day). Is this an expected behavior?
I tried both using merged event lists and merged images with no significant difference.

Thanks.

Hi -

expmap can be slow for large maps or polar regions. If it's still printing messages, it's likely working. Probably the easiest way to speed it up is by enabling OpenMP parallelisation. You can try setting the OMP_NUM_THREADS environment variable to a value >1 to run on more than one core.

Jeremy