custom build of atlas only uses ~70% CPU
Bug #956753 reported by
zarquon42
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
atlas (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
First of all, the option to easyily compile a multithreaded atlas is just great!
However, I compared atlas to the OpenBLAS library and recognized it to be approx. 30% slower. When examining the CPU-load during calculation, I saw atlas only using 70% of the CPU horsepower (while OpenBlas uses full 100%) and wondered, if there was an option during compiling that can trigger atlas to gain full speed.
I attached a screenshot of the CPU monitoring.
Thank you in advance
Stefan
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Some codes could help here...
You should report a bug upstream if you want to see it fixed.
S