returns 48 cores for 96 core windows machine about num_cpus

[jonathanstrong]

I'd love to help out, unfortunately:

• I was only on the machine briefly to run something numerically intensive
• I have close to no experience with windows system calls, and deeply loathe windows in general
• I tried to read the docs you reference in the last few minutes and found them baffling, even incomprehensible. Perhaps more than 64 cores is unusual enough it's not explained super well? Maybe it's just late.

However - next time I am working on one of these instances I'll try to poke around, if it's still relevant. Thanks!

[seanmonstar]

Huh, I just checked the MSDN docs about GetSystemInfo and dwNumberOfProcessors, and noticed this:

The number of logical processors in the current group.

It seems the group can only have up to 64 (and thus you're seeing 48)? Since you seem to have access to a windows box with a lot of cores, would you be able to help with the fix?

[sectorzero]

I have implemented this feature. I will send a PR soon.