Noel Maersk 81337e0064 kernel: vanilla Alexey Karimov kernels (alexkarnew and alexkarold). ... alexkarnew: (for driver 13.4 and newer, and cgminer 3.3.1) alexkarold: (for older drivers than 13.4, and cgminer 3.3.1) https://litecointalk.org/index.php?topic=4082.0 > I was able to optimize the code of cgminer's scrypt.cl. > It gives 0-3% increase, depending on the drivers and hardware. > 1. Without optimization, when "CO" is used, every time > z+x*zSIZE+y*xSIZE*zSIZE is calculated. > I have created "CO" variable, and made so that x*SIZE is calculated only > once. Now, when "CO" is used, every time z+y*xSIZE*zSIZE is calculated. > In one case, variable y is incremented by 1 after 8 "CO" calculations. > I have created "CO_tmp" variable, where contains result of xSIZE*zSIZE. > And after 8 "CO" calculations I add "CO_tmp" to "CO". > Now, when "CO" is used, every time only z is calculated. It is faster as > z+x*zSIZE+y*xSIZE*zSIZE :) > In other case when "CO" is used, every time z+y*xSIZE*zSIZE is > calculated, but it faster than z+x*zSIZE+y*xSIZE*zSIZE too. > 2. I have replaced multiplication by 2 with bit rotation - it is faster. > For 7xxx cards you can try to set --thread-concurrency equal to (2^n + 1). > It may give a little more mining speed. > For example: 16385 (it is 2^14 + 1), 8193 (2^13 + 1), or 4097 (2^12 + 1). > I have almost no information, how it works on other series. > LMqRcHdwnZtTMH6c2kWoxSoKM5KySfaP5C		2014-01-21 09:45:10 +02:00
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alexkarnew.cl	kernel: vanilla Alexey Karimov kernels (alexkarnew and alexkarold).	2014-01-21 09:45:10 +02:00
alexkarold.cl	kernel: vanilla Alexey Karimov kernels (alexkarnew and alexkarold).	2014-01-21 09:45:10 +02:00
ckolivas.cl	kernel/misc: change ckolivas.cl encoding to UTF-8.	2014-01-20 23:47:24 +02:00
zuikkis.cl	kernel: zuikkis' vanilla kernel added.	2014-01-20 23:36:58 +02:00