sofiia-tesliuk/integrals

Program for calculating integral of Ackley's function.

Integral

Ackley's function

Processing

Config file

Config file should have one attribute per line in such order, as they defined here (you can find example in config.txt):

0.05        # absolute error
0.001       # relative error
4   	    # number of threads
20          # a
0.2         # b
6.2831853   # c
-100        # x1
100         # x2
-100        # y1
100         # y2
100         # initial steps
100000      # max steps

Compilation

Creating new working directory:
mkdir build

Go to working directory:
cd build

Compiling cpp files:
cmake -G"Unix Makefiles" -DCMAKE_BUILD_TYPE=Release ..
make

Running programs

Run consistent program:
./consistent <config_filename>

Run parallel program:
./parallel <config_filename>

If you do not provide <config_filename>, program will be looking for config.txt in local directory.

Running test program

Go to upper directory:
cd ..

Run test:
python3 test_and_compare.py <number_of_tests>

If you do not provide <number_of_tests>, program will will set number_of_tests = 10000.

Results

For such configuration:

0.05        # absolute error
0.001       # relative error
20          # a
0.2         # b
6.2831853   # c
-100        # x1
100         # x2
-100        # y1
100         # y2
100         # initial steps
100000      # max steps

Number of tests: 10000

Consistent: 2816 microseconds

Parallel:
               1 threads: 2912 microseconds
               2 threads: 702 microseconds
               3 threads: 64 microseconds
               4 threads: 68 microseconds

consistent
parallel

Parallel:
               10 threads: 7887 microseconds
               100 threads: 313 microseconds
               1000 threads: 3564 microseconds
               10000 threads: 36472 microseconds

consistent
parallel