Thread: Intel Xeon PHI?
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Old 2021-07-19, 19:53   #202
ewmayer's Avatar
Sep 2002
República de California

2×3×29×67 Posts

Originally Posted by paulunderwood View Post
I followed your instructions up to a point and decided 4 cores per worker was optimal. I then fired up mprime and it automatically chose 16 workers. Now the box is screaming on this hot July day.
Ah, you must have a 64-core rig, not 68. What does 'sensors | grep Package' show? Here's output for mine:

Package id 0: +68.0°C (high = +80.0°C, crit = +90.0°C) ALARM (CRIT)

This system is sitting in a corner on the floor under an open window, warm day, ambient close to 80F/27C. The side panel nearest one wall forming the corner has been removed, leaving about a 1-inch gap for air exchange between case innards and ambient. (On top of the 2 top case fans removing heat from the water-cooling unit radiator, naturally). Note I get the scary-looking 'ALARM (CRIT)' warning whenever the inside temp ticks above 70C at any time since-last-boot, and it persists even when the temp drops back down below the triggering threshold. IOW, the guard dog won't stop barking once it starts.

Last fiddled with by ewmayer on 2021-07-19 at 19:53
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