Warwick, UK - Clustering specialist Streamline Computing announces the simultaneous release of DDT, the Distributed Debugging Tool, for 64-bit AMD Opteron, Intel Itanium-2 and Sunfire systems. After releasing DDT for 32-bit systems in Q4-2002, Streamline received unprecedented demand for 64-bit support. The debugger is the first parallel debugger for the new Intel and AMD chips. Furthermore, in expanding from the Linux platform to provide a Solaris debugger, Streamline are delighted to be offering a much requested alternative to this branch of the High Performance Computing (HPC) community. The debugger supports MPI and also hybrid OpenMP+MPI and pthread+MPI codes. The user interface is modern and intuitive, allowing control of a complete cluster with the click of a mouse. It has syntax highlighted source code and fast and clear data browsing for Fortran (F77/F90/F95), C and C++.