[mpich-discuss] LAMMPS execution on Windows 7 no SP1 using MPICH 2.0-1.4.1p1 for windows

[Bruce Allen]

I can see smpd running as a service. smpd responds to start and stop commands. 

MPICH2 Configurable Settings reports 

"spike: MPICH2 not installed or unable to query host" 

I used the wmpiregister.exe to associate "behappy" with my mike account. I copied the mpich2mpidll to the winlaamps directory along with the 
mpiexec.exe. 

I turned off the windows firewall and disabled it. I turned off the Norton firewall and it is disabled as well. 

The lmp6.exe is a LAMMPS EXE file copied directly from the LAMMPS site. 



C:\winlaamps>mpiexec -np 4 -localonly c:\winlaamps\lmp6 < in.water5 
Unable to open the HKEY_LOCAL_MACHINE\SOFTWARE\MPICH\SMPD\process\6240 registry key, error 5, Access is denied. 

Unable to open the HKEY_LOCAL_MACHINE\SOFTWARE\MPICH\SMPD\process\3572 registry key, error 5, Access is denied. 

Unable to open the HKEY_LOCAL_MACHINE\SOFTWARE\MPICH\SMPD\process\7056 registry key, error 5, Access is denied. 

Unable to open the HKEY_LOCAL_MACHINE\SOFTWARE\MPICH\SMPD\process\7060 registry key, error 5, Access is denied. 

I was hoping to get LAMMPS to run quicker (divide and conquer)in a multicore environment. 

Thanks in advance for any insight! 

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