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Title: Guiminer flags for 4830/5750? Post by: Aost on June 16, 2011, 05:05:34 AM Hi,
Are there any particular recommended flags for either the ATI 4830 or 5750 under guiminer? I don't intend to overclock either of them so as to not lower their life expectancy too much. Also if possible could someone explain what the flags do? (ie. "-v", "-w128", "-k", etc.) Thanks Title: Re: Guiminer flags for 4830/5750? Post by: kylegates on June 18, 2011, 08:57:13 AM Heck, i wouldnt mind an answer to this either. Searching around I cant seem to find a good answer as to what the purpose of the flags is.
Title: Re: Guiminer flags for 4830/5750? Post by: Wuked on June 18, 2011, 10:30:03 AM -w is the worksize and as far as I know related to the memory.
you should try -w128 -w192 -w256 and see which works best for you. I have found that -v -w256 seems to work best on cards with unclocked memory. Title: Re: Guiminer flags for 4830/5750? Post by: Spirals on June 18, 2011, 10:31:49 AM Hi, Are there any particular recommended flags for either the ATI 4830 or 5750 under guiminer? I don't intend to overclock either of them so as to not lower their life expectancy too much. Also if possible could someone explain what the flags do? (ie. "-v", "-w128", "-k", etc.) Thanks (The guiminer readme is available here: https://github.com/Kiv/poclbm) -v enables vectors, which is faster on some cards. -w is for worksize, and varies by card. In general, you should look at the flags listed for the highest performing entry for your card on the wiki here: https://en.bitcoin.it/wiki/Mining_hardware_comparison where it appears that "-v -w 128" yields good performance on a 5750. Title: Re: Guiminer flags for 4830/5750? Post by: Joshwaa on June 21, 2011, 01:27:20 PM I would really like to know what the -f and -k flags are for. Thanks
Title: Re: Guiminer flags for 4830/5750? Post by: hdfxst on August 18, 2011, 05:55:31 PM i just started playing around with an old 4830 i have laying around.i found the best is -v -w128 -f1.i also found that underclocking the memory below 700 cuts the hash rate.At 750/700 i get 75 Mhash.The latest version of sapphire Trixx works with the 4830
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