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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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scconf_transp_adap_qfe(1M)				  System Administration Commands				scconf_transp_adap_qfe(1M)

NAME
scconf_transp_adap_qfe - configure the qfe transport adapter DESCRIPTION
Note - Beginning with the Sun Cluster 3.2 release, Sun Cluster software includes an object-oriented command set. Although Sun Cluster software still supports the original command set, Sun Cluster procedural documentation uses only the object-oriented command set. For more infor- mation about the object-oriented command set, see the Intro(1CL) man page. You can configure qfe Ethernet adapters as cluster transport adapters. These adapters can only be used with transport type dlpi. The qfe Ethernet adapter connects to a transport switch or to another Ethernet adapter on a different node. In either case, the connection is made through a transport cable. When a transport switch is used and the endpoints of the transport cable are configured by using scconf, scinstall, or other tools, you are asked to specify a port name on the transport switch. You can provide any port name, or accept the default, as long as the name is unique for the switch. The default is to set the port name to the node ID hosting the adapter at the other end of the cable. There are no user configurable properties for cluster transport adapters of this type. SEE ALSO
Intro(1CL), clinterconnect(1CL), clnode(1CL), scconf(1M), scinstall(1M), qfe(7d) Sun Cluster 3.2 4 May 2006 scconf_transp_adap_qfe(1M)
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