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Old 2020-11-01, 20:10   #1
joejoefla
 
May 2019

916 Posts
Default -safeMath not recognized

Hi Everyone,

I ran a basic command that includes the -safeMath common argument with 7.1-11. When I upgraded to 7.2-2 I received the error:

Quote:
2020-11-01 14:41:13 GpuOwl VERSION v7.2-2-ga135d8d
2020-11-01 14:41:13 Argument '-safeMath' '' not understood
2020-11-01 14:41:13 Exiting because "args"
2020-11-01 14:41:13 Bye
I checked out the readme file for 7.2 and it still saw the argument listed. Curious I ran gpuowl-win.exe by itself and got:

Quote:
2020-11-01 15:00:05 GeForce GTX 1080-0 104829353 OpenCL args "-DEXP=104829353u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=11u -DCARRY64=1 -DCARRYM64=1 -DMM2_CHAIN=1u -DMAX_ACCURACY=1 -DWEIGHT_STEP_MINUS_1=0xc.4e8e3ea58404p-4 -DIWEIGHT_STEP_MINUS_1=-0xd.e99a47b4101d8p-5 -cl-std=CL2.0 -cl-finite-math-only "
What was interesting was -cl-unsafe-math-optimizations didn't appear. I ran gpuowl-win.exe from 7.1-11 byitself and got this:

Quote:
2020-11-01 15:00:23 GeForce GTX 1080-0 104829353 OpenCL args "-DEXP=104829353u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=11u -DCARRY64=1 -DCARRYM64=1 -DMM2_CHAIN=1u -DMAX_ACCURACY=1 -DWEIGHT_STEP_MINUS_1=0xc.4e8e3ea58404p-4 -DIWEIGHT_STEP_MINUS_1=-0xd.e99a47b4101d8p-5 -cl-unsafe-math-optimizations -cl-std=CL2.0 -cl-finite-math-only "
I'm thinking -safeMath is enabled by default in v7.2?

I wanted to let someone know because there might be a discrepancy in the readme file.
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Old 2020-11-01, 20:40   #2
preda
 
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"Mihai Preda"
Apr 2015

53·11 Posts
Default

Quote:
Originally Posted by joejoefla View Post
Hi Everyone,

I ran a basic command that includes the -safeMath common argument with 7.1-11. When I upgraded to 7.2-2 I received the error:



I checked out the readme file for 7.2 and it still saw the argument listed. Curious I ran gpuowl-win.exe by itself and got:



What was interesting was -cl-unsafe-math-optimizations didn't appear. I ran gpuowl-win.exe from 7.1-11 byitself and got this:



I'm thinking -safeMath is enabled by default in v7.2?

I wanted to let someone know because there might be a discrepancy in the readme file.
Yes -safeMath is enabled by default. See in help (-h), there is now -unsafeMath to disable it. Basically the default was flipped.
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Old 2020-11-01, 22:20   #3
joejoefla
 
May 2019

32 Posts
Default

Quote:
Originally Posted by preda View Post
Yes -safeMath is enabled by default. See in help (-h), there is now -unsafeMath to disable it. Basically the default was flipped.
Tanks Preda!. I didn't think about running it with -h.

Last fiddled with by joejoefla on 2020-11-01 at 22:21
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