Important Things to Know for MPI 04.04
With the 04.04 release of the MPI a 64-bit dll is now included. This enables the development of 64-bit applications using the MPI.
A 32-bit dll is also included in the installation for users still building 32-bit applications. This 32-bit dll also uses the 64-bit device driver allowing your 32-bit applications to run on 64-bit environments.
The installation includes separate directories for 32-bit and 64-bit files. For this reason, the MPI 04.04 installer adds both ..\win32 and ..\win64 to your path variable. See below:
Some utilities included with the MPI still only opperate in 32-bit mode. Although these utilities are 32-bit, they will run on 64-bit environments. 32-bit utilities can be found in the ..\win32 directory.
The following utilites only come in 32-bit versions:
64-bit applications must be run with a 64-bit server. If you attempt to run a 64-bit application with a 32-bit server you will recieve an error. Likewise, if you attempt to run a 32-bit application with 64-bit server, you will receive an error. The following table shows the compatibility between different combinations of clients and servers.
If a host computer needs to commuicate with 32-bit and 64-bit applications multiple servers can be run on different ports to communicate with their respective applications. Visit the Server Utility page for more information.
The arguments of some MPI methods have been changed. Use the links below to see the method changes from the previous release.
Documentation for the following methods was added in MPI 04.04:
Unlike previous versions of the MPI, this release does not include mpivc80.dll. The 04.04 release of the MPI marks the end of support for Visual Studio 2005. Please upgrade to Visual Studio 2010 or use an earlier release of the MPI (ie. 04.02 or 04.03).
The new firmware pointer ‘_MFWPTR_ (type)’ clearly distinguishes between 32-bit firmware pointer and 32-bit or 64-bit host pointer.
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