The framework of MOFIA has been adapted from KOFIA, the software package developed for BNL experiment E787. The first version, MOFIA 1.0 contains the code used to analyze the test data acquired with 5 x-planes and 2 y-planes in the test run of August 1997. MOFIA 1.0 includes a full software analysis package of this test data, including: calibrations, efficiency and tracking. The second version, MOFIA 1.5, includes a "skeleton" that would allow the user to access the Monte Carlo data for purposes of developing the remaining software packages for E614. Both MOFIA 1.0 and MOFIA 1.5 are written in FORTRAN 77. Since then the collaboration have decided to adopt a more modern language, FORTRAN 90, due to many attractive features in this language. This lead to the development of MOFIA 2.0. Since FORTRAN 90 compilers are able to compile FORTRAN 77 code, we decided to keep as much as we can of the MOFIA main framework code (the code adapted from E787) in FORTRAN 77. This was mainly done for two reasons: first, the code adapted from E787 is well written and tested so that changing it will unnecessarily consume too much manpower; and second, compatibility with E787 is desired since it will allow us to benefit from E787 modifications to the code. For the same reasons, we decided not to modify any of the other packages that we adapted, namely: CFM, YBOS, and CERN libraries. On the ALPHA, these packages are compiled using the f77 compiler. On LINUX, however, it was necessary to recompile them with f90, due to incompatibilities between our compiler of choice for LINUX f90, ABSOFT, and the g77 compiler. Only minor changes, however, were made to these packages.

All the E614 code written for MOFIA 1.5 was completely rewritten and reorganized in MOFIA 2.0 in order to utilize the nice features of FORTRAN 90. We have also rewritten the data structures in this version. MOFIA 2.0 also includes the geometry structures and the TDC unpacking for the proportional chambers. In addition, MOFIA 2.0 is capable of analyzing the test data of August 1999, for the UV prototype chamber pair. This last feature allowed us to test MOFIA 2.0 with real data and compare directly the results from MOFIA 2.0 and MOFIA 1.5. While the collaboration have decided to support four computer platforms for the entire E614 code, at this stage MOFIA 2.0 has only been tested on two platforms, ALPHA and LINUX. Monte Carlo and real data analysis results were identical for the two platforms.

In the discussion below, some knowledge of FORTRAN 90 is assumed. We found that the book "Upgrading to FORTRAN 90" by Cooper Redwine, provides a good introduction to FORTRAN 90, at least for those familiar with FORTRAN 77. Specific documents for the ALPHA and the ABSOFT compilers and debuggers are also useful references. For ABSOFT, this documentation may be found on any machine where ABSOFT is installed in the directory /usr/absoft/doc. In particular, the file FxUserGuide.pdf provides information on the ABSOFT Fx multi-language debugger, and the file F90_Reference.pdf provides information on the FORTRAN 90 compiler. Information on our debugger of choice for the ALPHA, ladebug, is on the web at

http://www.unix.digital.com/faqs/publications/base_doc/DOCUMENTATION/HTML/ladebug/lp.html

and information on DEC FORTRAN 90 is at

http://lin00.triumf.ca/internal/internal-links/df90/dfau.htm
 

Figure1. MOFIA 2.0 initialization branch.