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Re:How to write efficient matrix multiplication by stephencanon on Sunday May 27, 2018 @08:32PM (#17169961)
Huh? Set bits 6 (DAZ) and 15 (FZ) in MXCSR. Done.

The only instructions you can’t set to flush are the legacy x87 opcodes, which you shouldn’t be using in a performance-sensitive context anyway.

Re:How to write efficient matrix multiplication by CamperBob2 on Monday May 28, 2018 @06:01AM (#17171588)
Sadly, some of us are stuck maintaining code that still needs to run on pre-SSE2 hardware.