GT.M

GT.M is a high-performance database engine, optimized for transaction processing. GT.M is also an application development platform and a compiler for the ANSI/ISO standard M language, which was formerly known as MUMPS.

GT.M stands for Greystone Technology M and was developed by Greystone Technology Corp. It is an implementation of ANSI standard M for various UNIX systems and for Hewlett-Packard's OpenVMS system.In addition to preserving the traditional features of M, GT.M also offers an optimized compiler that produces object code that does not require internal interpreters during execution.

Contents

1 GT.M vs other implementations of M 2 Working 3 GT.M distributions 4 Common applications 5 External links

GT.M vs other implementations of M

GT.M differs from other implementations of M in the following ways.

• Data and code are maintained in separate files
• The source code is compiled rather than interpreted

Working

GT.M compiles the M source code into the target machine language. These object files are dynamically linked into an image. GT.M databases are UNIX files identified by a file called Global directory. By changing the Global Directories, one can make the same program access different databases.

GT.M distributions

GT.M is currently available on the IBM RS/6000 AIX, Compaq Alpha/AXP Tru64 UNIX and Open VMS, HP Series 9000 HP-UX, Sun SPARC Solaris and x86 GNU/Linux. GT.M is available as open source freeware for the x86 GNU/Linux platform.

Common applications

GT.M is predominantly used in healthcare and financial services industry.

External links

• Project page at SourceForge