1. Log in to alvin:

ssh username@alvin.ruc.dk
(Use VPN client if connecting from outside the university network. )

2. Write an OpenMP program, compile and run it:

gcc -o hello -fopenmp hello.c
./hello

 A hello.c program:

#include <stdio.h> 
#include <omp.h>

int main (int argc, char *argv[]) {
    #pragma omp parallel
    printf("Hello from thread %d out of %d\n", 
            omp_get_thread_num(), omp_get_num_threads());
}

Compilers:

gcc (GNU's C and C++ compiler)
icc (Intel's C and C++ compiler)
javac (Java compiler)
cilkc (Cilk C compiler)
cilk++ (Cilk C++ compiler)

Debuggers:

gdb (GNU's C debugger)
tcheck_cl (Intel's thread checker)
valgrind (Suite of tools for debugging and profiling)

Technical specifications:

Intel PowerEdge R900
Four Quad Core Xeon, 2.13GHz
Memory, 32GB, 667MHz
L1 I cache: 32K, L1 D cache 32K
L2 cache: 3072K
L3 cache: 12288K
Operating system: openSUSE Linux