WMPI II is the high-end member of Critical Software’s line of middleware products for high performance computing clusters providing a comprehensive MPI-2 standard implementation.

WMPI II is a production-strength middleware, professionally supported, with a long-term commitment from Critical Software S.A., and is available for Windows™ and Linux-based (kernel 2.4.x or higher) platforms.

	First worldwide MPI-2 compliant implementation for general purpose clusters;
	Full support of dynamic process creation, including client/server arrangements;
	Full support of one sided communications, including the three types of synchronization;
	Full support of I/O operations/parallel I/O;
	Full support of extended collective operations;
	OpenMP™ ready, full thread safety;
	Support for TCP and SMP devices;
	Advanced architecture, capable of supporting many different communication devices simultaneously;
	Efficient, non-polling implementation;
	Full overlap of communication and computation;
	Asynchronous completion notification;
	Automatic Remote Installation;
	Supports simultaneous independent MPI computations in the same CPU, with partial or complete overlap;
	Mpiexec is not mandatory to launch an application;
	Optimized use of synchronization mechanisms;
	Single-memory-copy semantics for shared memory communications;
	C/C++ bindings with support for MS Visual C++ 6.0 and 7.0 (.NET) or any other C89 compliant compiler;
	Fortran bindings (F77 and F90 standard) with support for Compaq Visual Fortran 6.1, Absoft Pro Fortran 7.0 and Lahney/Fujitsu Fortran 5.6 IDE's/compilers;
	Supports Windows™ based clusters (WinNT 4.0, Win2000 Pro/Advanced Server, WinXP, Win Server 2003);
	Supports Linux based clusters (Red Hat, Mandrake, SuSe, Debian, and other kernel 2.4.x distributions or higher);
	Support 64 bit extended systems, Opteron, Athlon64, EM64T and Itanium 2;

For information about support for other systems and development environments, please contact wmpi-sales@criticalsoftware.com.