[Beowulf] Amber 8 Execution problem

Tom Elken tom.elken at qlogic.com
Wed Dec 19 14:20:06 EST 2007


 ________________________________

	From: beowulf-bounces at beowulf.org
[mailto:beowulf-bounces at beowulf.org] On Behalf Of Sangamesh B
	Sent: Wednesday, December 19, 2007 12:05 AM
	To: Beowulf ML
	Subject: [Beowulf] Amber 8 Execution problem

Hi Sangamesh,

Sounds like a linking problem rather than execution ...	
	
	Hi All,
	
	I installed AMBER8 on Opteron Dual core, dual processor, Rocks
cluster with the following options/libraries: 
	
	Compiler: Intel 9 Fortran and C++ compilers.
	Blas Library: MKL8
	MPI: MPICH2 compiled with Intel compiler.
	
	
	its giving: 
	
	symbol lookup error:       undefined symbol:
__intel_cpu_indicator
	
	I guessed, this might relate to MKL library. 

Sounds like a safe bet.
	
	During 'make' it was taking MKL lib*.so files from
$MKL_HOME/lib/32 (in config.h file).
	
	Changed $MKL_HOME/lib/32 to $MKL_HOME/lib/64 since the arch is
AMD64 opteron. 
      But it is giving incompatible - libvml.so file.
	
	I'm not getting why this error is coming. 

The MKL library is highly targetted at Intel CPUs and you are using AMD
Opteron.  

Unlike Intel, AMD offers a free math library tuned to their processors:
ACML.
http://developer.amd.com/acml3.jsp
is the free download page.  Choose a version compatible with your Intel
Fortran compiler.  

That is probably your easiest solution and the way to the best
performance on Opteron.

-Tom

	
	Any help for this will be appreciated. 
	
	Thanks & Regards,
	Sangamesh 
	
	


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