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Special Forums UNIX and Linux Applications High Performance Computing Benchmarking a Beowulf Cluster Post 302316527 by otheus on Friday 15th of May 2009 10:50:52 AM
Old 05-15-2009
I was able to succesfully run xhpl using your HPL.dat file on 6 processors across 2 nodes.

The command used was:
Code:
mpirun -mca btl tcp,self -np 6 -hostfile machines ./xhpl

(Note the "-mca btl tcp,self" is to avoid warnings and errors w.r.t. Infiniband, which we don't have here. If this is your problem, it's still your admin's fault!)

The machines file was as follows:
Code:
sandbox
sandbox
sandbox2
sandbox2
sandbox2
sandbox2

The HPL.dat file was identical to the one you posted here, with the exception of Q = 3 (since I have one 4-cpu host and one 2-cpu host). Also HPL.out was changed to 340 for speed reasons, but prior tests indicated it worked well to at least 2500 on my hosts. Large values of N may cause the system to run out of memory, but this would be a different error.


To compile the HPL program, I used the command "make arch=TIS" (my firm is called Tiscover) and the following Makefile (Make.TIS). For your admin's sake, I have hilighted some important changes:
Code:
SHELL        = /bin/sh
CD           = cd
CP           = cp
LN_S         = ln -s
MKDIR        = mkdir
RM           = /bin/rm -f
TOUCH        = touch
ARCH         = TIS
TOPdir       = $(HOME)/downloads/hpl-2.0
INCdir       = $(TOPdir)/include
BINdir       = $(TOPdir)/bin/$(ARCH)
LIBdir       = $(TOPdir)/lib/$(ARCH)
HPLlib       = $(LIBdir)/libhpl.a
MPinc        =
MPlib        =
LAdir        =
LAinc        =
LAlib        = /usr/lib/libblas.a
F2CDEFS      = -DAdd__ -DF77_INTEGER=int -DStringSunStyle
HPL_INCLUDES = -I$(INCdir) -I$(INCdir)/$(ARCH) $(LAinc) $(MPinc)
HPL_LIBS     = $(HPLlib) $(LAlib) $(MPlib)
HPL_OPTS     =
HPL_DEFS     = $(F2CDEFS) $(HPL_OPTS) $(HPL_INCLUDES)
CC           = /usr/bin/mpicc
CCNOOPT      = $(HPL_DEFS)
CCFLAGS      = $(HPL_DEFS) -fomit-frame-pointer -O3 -funroll-loops
LINKER       = /usr/bin/mpif77
LINKFLAGS    = $(CCFLAGS)
ARCHIVER     = ar
ARFLAGS      = r
RANLIB       = echo


Last edited by otheus; 05-15-2009 at 11:51 AM.. Reason: colors
 

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NEWUSER(8)						      System Manager's Manual							NEWUSER(8)

NAME
newuser - adding a new user SYNOPSIS
rc /sys/lib/newuser DESCRIPTION
To establish a new user on Plan 9, add the user's name to /adm/users by running the newuser command on the console of the file server (see users(6) and fs(8)). Next, give the user a password using the changeuser command on the console of the authentication server (see auth(8)). At this point, the user can bootstrap a terminal using the new name and password. The terminal will only get as far as running rc, however, as no profile exists for the user. The rc(1) script /sys/lib/newuser sets up a sensible environment for a new user of Plan 9. Once the terminal is running rc, type rc /sys/lib/newuser to build the necessary directories in /usr/$user and create a reasonable initial profile in /usr/$user/lib/profile. The script then runs the profile which, as its last step, brings up 81/2(1). At this point the user's environment is established and running. (There is no need to reboot.) It may be prudent at this point to run passwd(1) to change the password, depending on how the initial password was cho- sen. The profile built by /sys/lib/newuser looks like this: bind -a $home/bin/rc /bin bind -a $home/bin/$cputype /bin font = /lib/font/bit/pelm/euro.9.font switch($service){ case terminal prompt=('term% ' ' ') fn term%{ $* } exec 81/2 case cpu bind -b /mnt/term/mnt/81/2 /dev prompt=('cpu% ' ' ') echo -n $sysname > /dev/label fn cpu%{ $* } news case con prompt=('cpu% ' ' ') news } Sites may make changes to /sys/lib/newuser that reflect the properties of the local environment. Use the -c option of mail(1) to create a mailbox. SEE ALSO
passwd(1), 81/2(1), namespace(4), users(6), auth(8), fs(8) NEWUSER(8)
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