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Author Topic: Warning: overflow encountered in uint_scalars  (Read 2282 times)
JesusTheCaffeine
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March 05, 2011, 04:25:04 PM
 #1

I get this like 5 times every time I hit a share
319650 khash/sWarning: overflow encountered in uint_scalars
Warning: overflow encountered in uint_scalars
Warning: overflow encountered in uint_scalars
Warning: overflow encountered in uint_scalars
Warning: overflow encountered in uint_scalars
Warning: overflow encountered in uint_scalars
05/03/2011 10:17:31, 7e44781c, accepted 

This only happens in linux, in windows this does not happen. The payouts and shares/m are about the same. (I think linux has a bit more.)

System:
AMD X4 CPU
AMD 6950 with 6970 bios (This happened before I flashed the bios.) Furmark shows no artefacts at stock clocks.
Gentoo GNU/linux
ATI Stream 2.2
Momchil's gpu miner

Anybody else getting this.
It doesn't seem to affect mining but is kinda strange.
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teknohog
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March 11, 2011, 03:57:51 PM
 #2

Also happens to me in Linux, driver 10.12 and SDK 2.2. On all of my Radeons, 5570, 5770 and 5870.

I noticed this started when poclbm switched to the ArtForz kernel. In fact, on 5570 an older version is faster, and on 5770 there is no noticeable difference, so I keep using the older version for them.

JesusTheCaffeine
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March 11, 2011, 07:39:14 PM
 #3

Well, I think it's because I'm still using python 2.6.

With 3.1 this doesn't happen but I don't notice any performance difference.
m0mchil
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March 17, 2011, 09:42:07 AM
 #4

This warning appears here with PyOpenCL built with NumPy 1.5.1.

No warnings if using NumPy 1.4.1. I'll try to fix this in poclbm.

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