From NWChem
			Viewed 695 times, With a total of 0 Posts
												
			
                  
        
            
                | 
                    
                 | 
            
            
                
                    
                        
                            | 
                 Just Got Here 
                
                                Threads 2 
                                Posts 3                              
                             | 
                         
                     
                 | 
            		
		                
		                    
		                        | 2:58:32 AM PDT - Fri, Jun 10th 2016  | 
		                             | 
		                     
		                    
		                        Hi all, 
 
I'm trying to install NWChem 6.6 on IBM Power7 machine running SuSE Linux 11.3  
 
While the compilation both with GNU or IBM compilers is OK. I'm observing a strange behaviour when running the code. Namely, with GNU compilers everything seems OK but when I try to run N2 scf geometry optimization test job with IBM version I get no convergence. 
 
 ------------------------------------------------------------------------
 scf optimize failed                                                                                0
 ------------------------------------------------------------------------
 ------------------------------------------------------------------------
  current input line : 
    10: task scf optimize
 ------------------------------------------------------------------------
 ------------------------------------------------------------------------
 This type of error is most commonly associated with calculations not reaching convergence criteria
 ------------------------------------------------------------------------
 
 
If I run the very same job as single point calculation everything seems OK with both version (I got the same result).  
 
So I suspect gradient code to be compiled wrong with IBM xlf compiler, but of course I may be wrong. 
 
Here are the settings I used during compilation: 
export NWCHEM_TOP=$PWD
export NWCHEM_TARGET=LINUX64
export OBJECT_MODE=64
export USE_MPI=y
export NWCHEM_MODULES="cphf gradients driver vib property hessian"
export MPI_LOC=/gpfs/home/utils/LINUX/mpich/mpich-3.1.3/
export MPI_LIB="$MPI_LOC/lib -lmpifort -Wl,-rpath -Wl,$MPI_LOC/lib -lmpi"
export MPI_INCLUDE=$MPI_LOC/include
export USE_INTERNALBLAS=y
cd $NWCHEM_TOP/src
make nwchem_config
make FC=xlf  
 
Thanks, 
Lukas
 | 
		                     
		                 
		             | 
        
 
         | 
        
      
        	
            
                AWC's:
                 2.5.10 MediaWiki - Stand Alone Forum Extension
Forum theme style by: AWC