A web-based environment is utilized as a means to introduce advanced mass transfer processes concepts in environmental engineering and science courses. System development and implementation is presented, including detailed descriptions of the techniques employed to link software written in highlevel computer languages such as C++ and FORTRAN to an internet-based, user-friendly graphical user in...

The purpose of this benchmark is to compare the optimization techniques in current Fortran and C OpenMP compilers. Examples are the removal of redundant synchronization constructs and effective constructs for alternative code. Although all tests focus on language independent techniques, there are differences in the implementation of the compilers.

Numerical applications require large amounts of computing power. Although shared memory multiprocessors provide a cost-e ective platform for parallel execution of numerical programs, parallel processing has not delivered the expected performance on these machines. There are two crucial steps in parallel execution of numerical applications: (1) e ective parallelization of an application and (2) ...

Recent years have seen an increasing demand on accurate transition probability calculations for open-shell atoms and ions. To facilitate such investigations, the program REOS [S. Fritzsche, C.F. Fischer, Comput. Phys. Commun. 99 (1997) 323] has been developed which includes the effects of relativity, correlation, and the rearrangement of the bound-state electron density within the framework of ...

Technological progress in the performance of small computers has rapidly changed the demands on the software that is properly matched to the hardware. Table 1 shows running times on some PC-clones and workstations for the electron optics program EGN2 (1) running a simulation of a gun for an Electron Beani Ion Source (EBIS) (2). The speed increases shown in Table 1 have been accompanied by a red...