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Bug #1689

CMK_TIMER_USE_PPC64 inaccurate with variable clock speeds

Added by Phil Miller 23 days ago. Updated 23 days ago.

Status:
Implemented
Priority:
Normal
Assignee:
Category:
Machine Layers
Target version:
Start date:
04/30/2017
Due date:
% Done:

0%


Description

The pami-linux-ppc64le machine layer is defaulting to CMK_TIMER_USE_PPC64

src/arch/pami-linux-ppc64le/conv-mach.h:#define CMK_TIMER_USE_PPC64 1

This timer assumes a constant clock speed, which hasn't been true for a long time so projections traces are pretty useless.

Fix the code to do what's necessary to get accurate wall times from the fast intrinsic techniques.


Related issues

Copied from Charm++ - Bug #1544: CMK_TIMER_USE_PPC64 inaccurate with variable clock speeds Merged 04/30/2017

History

#1 Updated by Phil Miller 23 days ago

  • Copied from Bug #1544: CMK_TIMER_USE_PPC64 inaccurate with variable clock speeds added

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