Increment
The Increment application is a C application that increases N times three different counters. Each increase step is developed by a separated task. The purpose of this application is to show parallelism between the three counters.
Next we provide the main code of this application. The code inside the increment task is the same than the previous example.
// increment.cc
int main(int argc, char *argv[]) {
// Check and get parameters
if (argc != 5) {
usage();
return -1;
}
int N = atoi( argv[1] );
string counter1 = argv[2];
string counter2 = argv[3];
string counter3 = argv[4];
// Init COMPSs
compss_on();
// Initialize counter files
file fileName1 = strdup(FILE_NAME1);
file fileName2 = strdup(FILE_NAME2);
file fileName3 = strdup(FILE_NAME3);
initializeCounters(counter1, counter2, counter3, fileName1, fileName2, fileName3);
// Print initial counters state
cout << "Initial counter values: " << endl;
printCounterValues(fileName1, fileName2, fileName3);
// Execute increment tasks
for (int i = 0; i < N; ++i) {
increment(&fileName1);
increment(&fileName2);
increment(&fileName3);
}
// Print final state
cout << "Final counter values: " << endl;
printCounterValues(fileName1, fileName2, fileName3);
// Stop COMPSs
compss_off();
return 0;
}
As shown in the main code, this application has 4 parameters that stand for:
N: Number of times to increase a counter
counter1: Initial value for counter 1
counter2: Initial value for counter 2
counter3: Initial value for counter 3
Next we will compile and run the Increment application with the -g option to be able to generate the final graph at the end of the execution.
compss@bsc:~$ cd ~/tutorial_apps/c/increment/
compss@bsc:~/tutorial_apps/c/increment$ compss_build_app increment
compss@bsc:~/tutorial_apps/c/increment$ runcompss --lang=c -g --project=./xml/project.xml --resources=./xml/resources.xml ~/tutorial_apps/c/increment/master/increment 10 1 2 3
[ INFO] Using default execution type: compss
----------------- Executing increment --------------------------
JVM_OPTIONS_FILE: /tmp/tmp.mgCheFd3kL
COMPSS_HOME: /opt/COMPSs
Args: 10 1 2 3
WARNING: COMPSs Properties file is null. Setting default values
[(655) API] - Starting COMPSs Runtime v<version>
Initial counter values:
- Counter1 value is 1
- Counter2 value is 2
- Counter3 value is 3
[ BINDING] - @GS_register - Ref: 0x7ffea17719f0
[ BINDING] - @GS_register - ENTRY ADDED
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file1.txt
[ BINDING] - @GS_register - setting filename: file1.txt
[ BINDING] - @GS_register - Filename: file1.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f8
[ BINDING] - @GS_register - ENTRY ADDED
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file2.txt
[ BINDING] - @GS_register - setting filename: file2.txt
[ BINDING] - @GS_register - Filename: file2.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea1771a00
[ BINDING] - @GS_register - ENTRY ADDED
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file3.txt
[ BINDING] - @GS_register - setting filename: file3.txt
[ BINDING] - @GS_register - Filename: file3.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f0
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file1.txt
[ BINDING] - @GS_register - setting filename: file1.txt
[ BINDING] - @GS_register - Filename: file1.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f8
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file2.txt
[ BINDING] - @GS_register - setting filename: file2.txt
[ BINDING] - @GS_register - Filename: file2.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea1771a00
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file3.txt
[ BINDING] - @GS_register - setting filename: file3.txt
[ BINDING] - @GS_register - Filename: file3.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f0
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file1.txt
[ BINDING] - @GS_register - setting filename: file1.txt
[ BINDING] - @GS_register - Filename: file1.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f8
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file2.txt
[ BINDING] - @GS_register - setting filename: file2.txt
[ BINDING] - @GS_register - Filename: file2.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea1771a00
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file3.txt
[ BINDING] - @GS_register - setting filename: file3.txt
[ BINDING] - @GS_register - Filename: file3.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f0
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file1.txt
[ BINDING] - @GS_register - setting filename: file1.txt
[ BINDING] - @GS_register - Filename: file1.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f8
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file2.txt
[ BINDING] - @GS_register - setting filename: file2.txt
[ BINDING] - @GS_register - Filename: file2.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea1771a00
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file3.txt
[ BINDING] - @GS_register - setting filename: file3.txt
[ BINDING] - @GS_register - Filename: file3.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f0
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file1.txt
[ BINDING] - @GS_register - setting filename: file1.txt
[ BINDING] - @GS_register - Filename: file1.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f8
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file2.txt
[ BINDING] - @GS_register - setting filename: file2.txt
[ BINDING] - @GS_register - Filename: file2.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea1771a00
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file3.txt
[ BINDING] - @GS_register - setting filename: file3.txt
[ BINDING] - @GS_register - Filename: file3.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f0
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file1.txt
[ BINDING] - @GS_register - setting filename: file1.txt
[ BINDING] - @GS_register - Filename: file1.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f8
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file2.txt
[ BINDING] - @GS_register - setting filename: file2.txt
[ BINDING] - @GS_register - Filename: file2.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea1771a00
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file3.txt
[ BINDING] - @GS_register - setting filename: file3.txt
[ BINDING] - @GS_register - Filename: file3.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f0
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file1.txt
[ BINDING] - @GS_register - setting filename: file1.txt
[ BINDING] - @GS_register - Filename: file1.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f8
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file2.txt
[ BINDING] - @GS_register - setting filename: file2.txt
[ BINDING] - @GS_register - Filename: file2.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea1771a00
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file3.txt
[ BINDING] - @GS_register - setting filename: file3.txt
[ BINDING] - @GS_register - Filename: file3.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f0
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file1.txt
[ BINDING] - @GS_register - setting filename: file1.txt
[ BINDING] - @GS_register - Filename: file1.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f8
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file2.txt
[ BINDING] - @GS_register - setting filename: file2.txt
[ BINDING] - @GS_register - Filename: file2.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea1771a00
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file3.txt
[ BINDING] - @GS_register - setting filename: file3.txt
[ BINDING] - @GS_register - Filename: file3.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f0
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file1.txt
[ BINDING] - @GS_register - setting filename: file1.txt
[ BINDING] - @GS_register - Filename: file1.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f8
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file2.txt
[ BINDING] - @GS_register - setting filename: file2.txt
[ BINDING] - @GS_register - Filename: file2.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea1771a00
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file3.txt
[ BINDING] - @GS_register - setting filename: file3.txt
[ BINDING] - @GS_register - Filename: file3.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f0
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file1.txt
[ BINDING] - @GS_register - setting filename: file1.txt
[ BINDING] - @GS_register - Filename: file1.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea17719f8
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file2.txt
[ BINDING] - @GS_register - setting filename: file2.txt
[ BINDING] - @GS_register - Filename: file2.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @GS_register - Ref: 0x7ffea1771a00
[ BINDING] - @GS_register - ENTRY FOUND
[ BINDING] - @GS_register - Entry.type: 9
[ BINDING] - @GS_register - Entry.classname: File
[ BINDING] - @GS_register - Entry.filename: file3.txt
[ BINDING] - @GS_register - setting filename: file3.txt
[ BINDING] - @GS_register - Filename: file3.txt
[ BINDING] - @GS_register - Result is 0
[ BINDING] - @compss_wait_on - Entry.type: 9
[ BINDING] - @compss_wait_on - Entry.classname: File
[ BINDING] - @compss_wait_on - Entry.filename: file1.txt
[ BINDING] - @compss_wait_on - Runtime filename: /home/compss/.COMPSs/increment_01/tmpFiles/d1v11_1479142004112.IT
[ BINDING] - @compss_wait_on - File renaming: /home/compss/.COMPSs/increment_01/tmpFiles/d1v11_1479142004112.IT to file1.txt
[ BINDING] - @compss_wait_on - Entry.type: 9
[ BINDING] - @compss_wait_on - Entry.classname: File
[ BINDING] - @compss_wait_on - Entry.filename: file2.txt
[ BINDING] - @compss_wait_on - Runtime filename: /home/compss/.COMPSs/increment_01/tmpFiles/d2v11_1479142004112.IT
[ BINDING] - @compss_wait_on - File renaming: /home/compss/.COMPSs/increment_01/tmpFiles/d2v11_1479142004112.IT to file2.txt
[ BINDING] - @compss_wait_on - Entry.type: 9
[ BINDING] - @compss_wait_on - Entry.classname: File
[ BINDING] - @compss_wait_on - Entry.filename: file3.txt
[ BINDING] - @compss_wait_on - Runtime filename: /home/compss/.COMPSs/increment_01/tmpFiles/d3v11_1479142004112.IT
[ BINDING] - @compss_wait_on - File renaming: /home/compss/.COMPSs/increment_01/tmpFiles/d3v11_1479142004112.IT to file3.txt
Final counter values:
- Counter1 value is 2
- Counter2 value is 3
- Counter3 value is 4
[(4288) API] - Execution Finished
------------------------------------------------------------
By running the compss_gengraph command users can obtain the task graph of the above execution. Next we provide the set of commands to obtain the graph show in Figure 66.
compss@bsc:~$ cd ~/.COMPSs/increment_01/monitor/
compss@bsc:~/.COMPSs/increment_01/monitor$ compss_gengraph complete_graph.dot
compss@bsc:~/.COMPSs/increment_01/monitor$ evince complete_graph.pdf
Figure 66 C increment tasks graph