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More scrypt intensity information.

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This commit is contained in:
Con Kolivas 2012-07-30 09:33:04 +10:00
parent 52821d4241
commit 4cf2b4da23
1 changed files with 4 additions and 1 deletions
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SCRYPT-README
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@ -81,7 +81,10 @@ reason this is crucial is that too high an intensity can actually be
disastrous with scrypt because it CAN run out of ram. Intensities over 13
start writing over the same ram and it is highly dependent on the GPU, but they
can start actually DECREASING your hashrate, or even worse, start producing
garbage with rejects skyrocketing.
garbage with rejects skyrocketing. The low level detail is that intensity is
only guaranteed up to the power of 2 that most closely matches the thread
concurrency. i.e. a thread concurrency of 6144 has 8192 as the nearest power
of two above it, thus as 2^13=8192, that is an intensity of 13.
Optional parameters to tune: