Changeset 163

Timestamp:

Jan 17, 2010, 8:50:04 PM (14 years ago)

Author:

(none)

Message:

 

File:

• proiecte/NBody/NBI/README (modified) (1 diff)

proiecte/NBody/NBI/README

@@ +1 @@
+This program provides an implementation for four integrators. 
+
+The one that I studied is the Wisdom-Hollman simplectic integrator, which function coresponds to the HWHStep.
+
+Files:
+
+NBIserial.c - serial version of the program.
+NBIparalel.c - paralel version of the program.
+NBIsampleinput - input file
+NBIsampleoutput - output file
+NBIsampleoutput.log - log file
+scr_serial.sh - script to run the serial version on fep
+scr_paralel.sh - script to run the paralel version on fep, it takes as input arguments the number of threads and        the schedule type
+
+Ex: scr_paralel.sh 4 "guided"
+
+Compile: make
+Run: 
+        Serial  
+        time ./NBIserial NBIsampleinput
+
+Time:
+real    0m0.017s
+user    0m0.000s
+sys     0m0.016s
+
+        Paralel
+        setenv OMP_NUM_THREADS 4
+        setenv OMP_SCHEDULE "dynamic"
+        time ./NBIparalel NBIsampleinput
+
+Time:   
+        real    0m0.084s
+        user    0m0.016s
+        sys     0m0.016s
+
+