From NWChem
			Viewed 564 times, With a total of 2 Posts
												
			
                  
        
            
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                            | Clicked A Few TimesThreads 3 Posts 5
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		                        | 3:05:35 PM PST - Mon, Feb 17th 2014 |  |  
		                        | Hi, All 
  I am trying to get the charge density cube file for a large number of atoms.dplot
 
   LimitXYZend-7.0 7.0 600
 -7.0 8.0 600
 -6.0 6.0 500
 spin total
 gaussian
 output chargedensity.cube
 
 
 This first error I met was"DPlot: Failed to allocate grid        0",so I increased the memory. Then I still got the error"DPlot: Failed to allocate values        0". Could anyone please tell me how to fix this problem?
 regards
 Philip
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                                     Edoapra  Forum:Admin, Forum:Mod, bureaucrat, sysop
                                    
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                            | Forum VetThreads 3 Posts 855
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		                        | 10:52:38 AM PST - Tue, Feb 18th 2014 |  |  
		                        | You should decrease the number  of grid points, for example 
 
-7.0 7.0 60
-7.0 8.0 60
-6.0 6.0 50
 
 If this modified input works, you should try to slowly increase the number of grid points until you run out of memory again
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                            | Clicked A Few TimesThreads 3 Posts 5
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		                        | 12:28:41 PM PST - Tue, Feb 18th 2014 |  |  | DPlot: Failed to allocate values 0 
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		                        | Quote:Edoapra Feb 18th 9:52 am You should decrease the number  of grid points, for example 
-7.0 7.0 60
-7.0 8.0 60
-6.0 6.0 50
 
If this modified input works, you should try to slowly increase the number of grid points until you run out of memory again
 
 Thanks for your suggestion,I have tried fewer grid points before, but decreasing the number of grid points lead to bad results of total electron numbers, so at least we need to have 10 grid points/atomic unit.
 philip
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