About
Genetic Programming in OpenCL is a parallel implementation of genetic programming targeted at heterogeneous devices, such as CPU and GPU. It is written in OpenCL, an open standard for portable parallel programming across many computing platforms.
Running GPOCL
Prerequisites
In order to compile gpocl you must have installed the following tools:
Compiling
Building using an out-of-source approach is recommended. To do so, within the root gpocl directory:
cd build cmake .. make
This should leave in the build directory an executable file called gpocl.
Usage
Usage: gpocl [-cpu [n] | -gpu <fpi|ppcu|pppe>] [OPTION] <data points>
General options:
-v, --verbose
verbose
--version
print gpocl version and exit
-h, --help
print this help and exit
Genetic Programming options:
-p <p1,...,pn>, --primitives <p1,...,pn>
GP primitives (operators/operands) [default = +,-,*,/,neg,ephemeral]
-pp, --print-primitives
Print all available GP primitives
-g <n>, --generations <n>
number of generations, n>0 [default = 1000]
-s <n>, --seed <n>
GP initialization seed, n>=0 [default = 0, random]
-ps <n>, --population-size <n>
number of individuals [default = 1024]
-cp <f>, --crossover-probability <f>
crossover probability, 0.0<=f<=1.0 [default = 0.95]
-mp <f>, --mutation-probability <f>
mutation probability, 0.0<=f<=1.0 [default = 0.10]
-sp <n>, --seletion-pressure <n>
selection pressure (tournament size), n>=1 [default = 3]
-es <n>, --elitism-size <n>
elitism size, 0<=n<=1 [default = 1]
-max <n>, --maximum-size <n>
maximum program size [default = 20]
-min <n>, --minimum-size <n>
minimum program size [default = 1]
-et <n>, --error-tolerance <f>
tolerance of error (stop criterion) [default = none]
OpenCL options:
-cl-mls <n>, --cl-maximum-local-size <n>
Example
After having compiled gpocl, to run it do:
./gpocl -v ../datasets/fibonacci.csv
This will run gpocl using all cpu cores. To use a specific number of cores do
./gpocl -v ../datasets/fibonacci.csv -cpu 2
if you want, for instance, to use only two cores.
To run on the GPU, do:
./gpocl -v ../datasets/fibonacci.csv -gpu ppcu
License
gpocl is licensed under the GNU General Public License (GPL) Version 3 (or later), June 2007