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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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shells(4)							   File Formats 							 shells(4)

NAME
shells - shell database SYNOPSIS
/etc/shells DESCRIPTION
The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser- shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root. A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by the routines which search the file. Blank lines are also ignored. The following default shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/ksh93, /bin/pfcsh, /bin/pfksh, /bin/pfsh, /bin/sh, /bin/tcsh, /bin/zsh, /sbin/jsh, /sbin/sh, /usr/bin/bash, /usr/bin/csh, /usr/bin/jsh, /usr/bin/ksh, /usr/bin/ksh93, /usr/bin/pfcsh, /usr/bin/pfksh, /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh, and /usr/sfw/bin/zsh. /etc/shells overrides the default list. Invalid shells in /etc/shells could cause unexpected behavior, such as being unable to log in by way of ftp(1). FILES
/etc/shells list of shells on system SEE ALSO
vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4) SunOS 5.11 20 Nov 2007 shells(4)
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