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Topic: -4way switch not working (Read 2502 times)

legendary
Activity: 1470
Merit: 1006
Bringing Legendary Har® to you since 1952
November 06, 2010, 09:48:30 PM
#4
I have a 6-core Xeon processor, and as far as I can tell, Xeon supports up to SSE4, so I don't think that's the problem.  Plus, if it was unsupported, it would run at half-speed according to the wiki, and it's not, it's still running at full-speed.

Bitcoin's implementation of SSE4 is probably optimized better for AMD processors - somebody already complained about it on the forums i think...
So i guess filing a bug would be in order.
newbie
Activity: 45
Merit: 0
November 06, 2010, 05:33:36 PM
#3
I have a 6-core Xeon processor, and as far as I can tell, Xeon supports up to SSE4, so I don't think that's the problem.  Plus, if it was unsupported, it would run at half-speed according to the wiki, and it's not, it's still running at full-speed.
legendary
Activity: 1470
Merit: 1006
Bringing Legendary Har® to you since 1952
November 06, 2010, 03:10:46 PM
#2
I have a 6-core Mac Pro running OSX 10.6.4.  I started the client with the -4way switch which is supposed to make it twice as fast (or half as fast if your processor doesn't have that feature), but it's still getting about 6khash/s.

I changed into the right directory and started it with:

$ ./bitcoin -4way &

What am I doing wrong?

Nothing. Probably the bitcoin's implementation of 4-way SSE simply does not support Your processor.

1. Make sure Your processor actually supports it
2. File a bug (do we have a bug tracking system yet ?)
newbie
Activity: 45
Merit: 0
November 06, 2010, 12:05:48 PM
#1
I have a 6-core Mac Pro running OSX 10.6.4.  I started the client with the -4way switch which is supposed to make it twice as fast (or half as fast if your processor doesn't have that feature), but it's still getting about 6khash/s.

I changed into the right directory and started it with:

$ ./bitcoin -4way &

What am I doing wrong?
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