Administration

rucksackbulgeΤεχνίτη Νοημοσύνη και Ρομποτική

1 Δεκ 2013 (πριν από 3 χρόνια και 6 μήνες)

70 εμφανίσεις

Computational Physics

Dr. Guy Tel
-
Zur

Version
09
-
12
-
2010.12
:
40

Agenda


Administration


MHJ Chapter 10: MC methods in Statistical Physics


More on
VisIt
:


The Silo file format


A demo program


Creating a movie


More HPC stuff


DLA


Demo: AWS


HPC Instance for Parallel Computing and
Cellular Automata /
NKS demo on the cloud



Home assignment #3

Final Projects


Please hurry to choose a topic

Visualization: The Silo file format


References:


Download:
https://wci.llnl.gov/codes/silo/release_notes.html

(
BSD License)


http://www.e
-
science.le.ac.uk/format/silo.shtml


http://www.e
-
science.le.ac.uk/format/silocode.shtml


Visualization: A demo program


Use
VirtualBox



Ubuntu


Install Silo and
VisIt


Installation was not smooth on Ubuntu
10.4
, I
had to install
libstdc
++
5
manually (an older
version)


Let’s look at “
wave.c



Open
DevC
++ with:
C:
\
Users
\
telzur
\
Documents
\
My
Talks
\
MIL_OSS
\
silo
\
silo
-
4.8
-
bsd
\
tests
\
wave.c



Silo


Discuss in class the
wave.c

program


Run the program on the Virtual Machine


Make plot using
VisIt


Make a mpeg movie!

wave.c

silo file

Mini Course: Performance Tuning


Intel Parallel Studio (commercial)


Vampir

(commercial, only a free viewer)


TAU


Paraprof

(free)


Scalasca

(free)


Marmot (free, not in this course, perhaps in
CP2012A ?)

TAU

pprof
,
paraprof

cd to:
workshop
-
point/ring

HPC


Performance Optimization
Cycle

Source:
Scalasca

user guide

Scalasca

Step1:
scalasca


instrument
mpicc


o
jacobi

./
main.c

./
jacobi.c


Step 2:
scalasca


analyze
mpirun


np

4 ./
jacobi


Step 3:
scalasca


examine
epick
_<title>



Users guide:
http://www.fz
-
juelich.de/jsc/datapool/scalasca/UserGuide.pdf

BTW: Virtual Box file sharing: as root:

mount

t
vboxsf

guytmp

./
guytmp

HPC Cloud Computing Demo

Goal:

Install Condor on the HPC cloud machine


Run many Cellular Automata jobs


Check graphical output

How to install Condor on
Debian
:

http://www.cs.wisc.edu/condor/debian
/


AWS
-

CloudWatch

8 cores !

NKS

Reference:
http://
telzur.blogspot.com/2008/01/mysteries
-
of
-
cellular
-
automata.html