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Minor SCRYPT-README imrovements. 

A few unnecessary words.
nfactor-troky
Noel Maersk 11 years ago
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@ -18,9 +18,8 @@ GPU ram. If you have less system ram than your GPU has, it may not be possible
to mine at any reasonable rate. to mine at any reasonable rate.
There are 5 main parameters to tuning scrypt, all of which are optional for There are 5 main parameters to tuning scrypt, all of which are optional for
further fine tuning. When you start scrypt mining with the --scrypt option, further fine tuning. When you start mining, cgminer may fail IN RANDOM WAYS.
cgminer will fail IN RANDOM WAYS. They are all due to parameters being outside They are all due to parameters being outside what the GPU can cope with.
what the GPU can cope with.
NOTE that if it does not fail at startup, the presence of hardware errors (HW) NOTE that if it does not fail at startup, the presence of hardware errors (HW)
are a sure sign that you have set the parameters too high. are a sure sign that you have set the parameters too high.
@ -33,7 +32,7 @@ break scrypt mining entirely while others give poor hashrates. As for the
OpenCL SDK installed, for AMD it must be version 2.6 or later. OpenCL SDK installed, for AMD it must be version 2.6 or later.
Step 1 on linux: Step 1 on Linux:
export GPU_MAX_ALLOC_PERCENT=100 export GPU_MAX_ALLOC_PERCENT=100
If you do not do this, you may find it impossible to scrypt mine. You may find If you do not do this, you may find it impossible to scrypt mine. You may find
a value of 40 is enough and increasing this further has little effect. a value of 40 is enough and increasing this further has little effect.
@ -52,7 +51,8 @@ Just like in bitcoin mining, scrypt mining takes an intensity, however the
scale goes from 0 to 20 to mimic the "Aggression" used in mtrlt's reaper. The scale goes from 0 to 20 to mimic the "Aggression" used in mtrlt's reaper. The
reason this is crucial is that too high an intensity can actually be reason this is crucial is that too high an intensity can actually be
disastrous with scrypt because it CAN run out of ram. High intensities disastrous with scrypt because it CAN run out of ram. High intensities
start writing over the same ram and it is highly dependent on the GPU, but they 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 can start actually DECREASING your hashrate, or even worse, start producing
garbage with HW errors skyrocketing. Note that if you do NOT specify an garbage with HW errors skyrocketing. Note that if you do NOT specify an
intensity, cgminer uses dynamic mode which is designed to minimise the harm intensity, cgminer uses dynamic mode which is designed to minimise the harm

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