Tag Archives: Julita Inca

Jesień Linuksowa 2018

Last weekend I participated in the conference Jesień Linuksowa 2018 in Ustroń which is located in Poland near the Czech and Slovak borders. It was my first time in a country with so much tragic historical experiences. On the other hand, … Continue reading

Posted in FEDORA, GNOME, τεχνολογια :: Technology | Tagged , , , , , , , , , | Leave a comment

Profile of the code on Cirrus

To see the profile on a code, we are going to work with gprof on Cirrus. Let’s use the percolate code: Include the flag -pg for Intel compiler in the Makefile to compile. After compiling, we will see that gmon.out was … Continue reading

Posted in τεχνολογια :: Technology | Tagged , , , , , , | Leave a comment

Calculating PI using MPI

Sequential program This is the program in C that use the math formula with sums.Parallelizing the code  Parallelizing the code manually:Now we are going to run it and check if all the processors resolve the same answer: Parallelising the code using … Continue reading

Posted in τεχνολογια :: Technology | Tagged , , , , , , | Leave a comment

Starting with OpenMP

We are going to work in DICE and the conventional hello world in C and Fortran: Hello World (OpenMP with fortran): The hello world in Fortran 90 as follow: By default it will take the number of threads as 16: … Continue reading

Posted in Education, τεχνολογια :: Technology | Tagged , , , , | Leave a comment

Learning Fortran

1.- Printing the Hello world The hello world itself has not much explanation:Then we need to compile it and run it: gfortran hello.f90 -o hello ./hello Hello World! 2.- Converting degrees to radians  In this case we are going to … Continue reading

Posted in Education, τεχνολογια :: Technology | Tagged , , | Leave a comment

Running MPI on DICE

Hello World We are going to use C to write the hello world programNow we can compile with mpicc mpicc -o hello hello.c Now we are ready to run in 4 processors: mpirun -np 4 hello Printing ranks and the … Continue reading

Posted in Education, τεχνολογια :: Technology | Tagged , , , , | Leave a comment

International Festival at ORNL

Thanks to alliance between United Way and ORNL, I had the opportunity to participate as a volunteer in the international festival at ORNL. The appointment happened at August 16 where more than 12 countries showed dance, food, and more information … Continue reading

Posted in Events | Tagged , , , , , , , , , , , , | Leave a comment