Hi all, as a first-time user of vista 64bit, I am having trouble using Rmpi
on my new quad core machine. Specifically my questions are as follows:
1.  How to resolve the error message "can't find deinom_mpich2mpi.dll"
despite that DeinoMPI 2.0.0 is already launched in windows?  See detailed
error message below;
 2.  How to set up Credential store in deinompi (64bit) for a single
machine?
3.  Is there anyway to turn off the annoying vista user account control
pop-up for unrecognized publisher Rgui.exe?  Would I be better off
abandoning vista for R in linux?
4.  The snow package seems to work for me, which is better Snow or Rmpi at
handling parallel R computation for a multi-core single machine?

Here are the symptoms associated with RMPI:

1. Submit Library(Rmpi) in R.2.9.1,  a window of "R console: Rgui.exe -
Unable to Locate Component" will show up with the following error message "x
This application has failed to start because deino_mpich2mpi.dll was not
found. Re-installing the application may fix this problem".
2. Click OK, then the error message show up:

Error in inDL(x, as.logical(local), as.logical(now), ...) :
unable to load shared library
'C:/Users/Jun/Documents/R/win-library/2.9/Rmpi/libs/Rmpi.dll':
LoadLibrary failure:  The specified module could not be found.
Error in library(Rmpi) : .First.lib failed for 'Rmpi'
Error in dyn.unload(file.path(libpath, "libs", paste("Rmpi",
.Platform$dynlib.ext,  :
  dynamic/shared library
'C:/Users/Jun/Documents/R/win-library/2.9/Rmpi/libs/Rmpi.dll' was not
loaded\

Here are my system setup:
1. R 291 32-bit because I can't find a 64-bit version for windows
2. OS windows vista 64-bit, never used vista before.  It's kind of annoying
to have to be prompted by vista to give authorization to allow Rgui.exe to
run every single time R is launched.
3. Although I installed Deinom 64-bit version from here and tried to follow
the instruction at http://www.stats.uwo.ca/faculty/yu/Rmpi/, I am not sure
whether I have created credentials properly.  Since I have only a single
machine and my user account has administrative rights, I don't know what
user and password to put in.

Sorry about the long-winded email.  Thanks so much for your patience and
help!

Best regards,
Jun

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