sean@Neon.Stanford.EDU (Sean Quinlan) (10/24/90)
I am interested in peoples experince with 88K VME boards. In particular, clock rate of boards they have received, performance of multi CPU boards, performace of memory systems and VME interfaces, documentation and overall support. Also, what companies produce such boards. My list includes Motorola: 181/188 Force: CPU 80 / 81 /82 Tadpole Technology: Not sure of board numbers I will summarize to the net sean@neon.stanford.edu
tjfs@tadtec.uucp (Tim Steele) (10/25/90)
In article <1990Oct24.023616.18839@Neon.Stanford.EDU> sean@Neon.Stanford.EDU (Sean Quinlan) writes: > I am interested in peoples experince with 88K VME boards. In particular, > clock rate of boards they have received, performance of multi CPU boards, > performace of memory systems and VME interfaces, documentation and overall > support. Also, what companies produce such boards. My list includes > Motorola: 181/188 > Force: CPU 80 / 81 /82 > Tadpole Technology: Not sure of board numbers > I will summarize to the net > sean@neon.stanford.edu Tadpole currently produce two 88000-based VME boards, the TP881V and the TP882V. The TP881V is a 6U-sized board-set product, made up of 2 - 4 boards, depending upon the desired system configuration. The TP882V is a 9U-sized, SUN-compatible single-board computer. Both boards are designed for multiprocessor operation, with the TP882 supporting 1 - 4 88100 CPUs and the TP881 supporting 1 - 8 CPUs. For both products at 20MHz, VME slave performance is typically 10Mb/s and master performance is 11Mb/s when operating with a high-speed slave. Memory bandwidth is a sustained 45Mb/s for cache line bursts from the 88200 devices. The standard products run at 20MHz, with 25MHz configurations subject to availability. Ethernet and dual SCSI interfaces are offered as standard. The TP881 may have additional memory, processing power or a VSB interface added as options. Comprehensive manuals are available for both products, providing all the required information to get a system up and running. The boards run TP-IX, Tadpole's implementation of UNIX System V Release 3.2. This is a true multithreaded kernel for maximising multiprocessor performance, using technology licensed from Data General Corp. For further information contact Tadpole on 1-800-232-6656 (US) or +44-223-423030 (International). -- tjfs@tadtec.uucp ...!uunet!mcvax!ukc!tadtec!tjfs Tadpole Technology plc, Science Park, Milton Road, CAMBRIDGE, CB4 4WQ Phone: +44-223-423030 Fax: +44-223-420772 Telex: 817316 TADTEC G