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@ -434,7 +434,7 @@ Q: The CPU usage is high. |
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A: If you're on linux, the ATI drivers after 11.6 have a bug that makes them |
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A: If you're on linux, the ATI drivers after 11.6 have a bug that makes them |
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consume 100% of one CPU core unnecessarily so downgrade to 11.6. If you're on |
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consume 100% of one CPU core unnecessarily so downgrade to 11.6. If you're on |
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windows, you may be out of luck because the pthread library used consumes a |
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windows, you may be out of luck because the pthread library used consumes a |
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lot of CPU. |
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lot of CPU. Binding everything to one CPU core on windows can help. |
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Q: Can you implement feature X? |
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Q: Can you implement feature X? |
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A: I can, but time is limited, and people who donate are more likely to get |
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A: I can, but time is limited, and people who donate are more likely to get |
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@ -444,7 +444,10 @@ Q: My GPU hangs and I have to reboot it to get it going again? |
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A: The more aggressively the mining software uses your GPU, the less overclock |
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A: The more aggressively the mining software uses your GPU, the less overclock |
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you will be able to run. You are more likely to hit your limits with cgminer |
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you will be able to run. You are more likely to hit your limits with cgminer |
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and you will find you may need to overclock your GPU less aggressively. The |
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and you will find you may need to overclock your GPU less aggressively. The |
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software cannot be responsible and make your GPU hang directly. |
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software cannot be responsible and make your GPU hang directly. If you simply |
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cannot get it to ever stop hanging, try decreasing the intensity, and if even |
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that fails, try changing to the poclbm kernel with -k poclbm, though you will |
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sacrifice performance. |
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Q: The Queue total at the top is much more than the sum of all the Queued |
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Q: The Queue total at the top is much more than the sum of all the Queued |
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values in each device. |
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values in each device. |
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@ -452,6 +455,15 @@ A: The per-device queue value is only incremented when that device has |
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requested work over any buffered amount of work, so with fewer devices this |
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requested work over any buffered amount of work, so with fewer devices this |
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value may stay very small. |
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value may stay very small. |
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Q: The Queue never increases on my card but the efficiency keeps going up, how |
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can the efficiency be so high? |
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A: Efficiency is defined as the accepted shares returned over the number of |
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work items requested. Cgminer generates a lot of work locally, and has a |
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buffer of "global" queued work meaning the device may hardly ever be requesting |
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work itself. Thus the number of work items requested may be very small yet the |
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GPU may still have plenty of work, creating accepted shares from them. Thus the |
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"efficiency", by that definition, becomes extremely high. |
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Q: Work keeps going to my backup pool even though my primary pool hasn't |
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Q: Work keeps going to my backup pool even though my primary pool hasn't |
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failed? |
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failed? |
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A: Cgminer checks for conditions where the primary pool is lagging and will |
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A: Cgminer checks for conditions where the primary pool is lagging and will |
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