|Machine type||Processor array|
|Models||MP2201, MP2202, MP2204, MP2208, MP2216|
|Front-end||DECstation 5000 or DEC VAX|
|Operating system||Internal OS transparent to the user, Ultrix or VMS on front-end|
|Connection structure||2-D mesh, crossbar (see remarks)|
|Compilers||MPL: (C with extensions), MPF: (Fortran 90-like with extensions)|
|Clock cycle||80 ns||80 ns||80 ns||80 ns||80 ns|
|No. of processors||1024||2048||4096||8192||16384|
|Theor. peak performance|
|Per proc. (Mflop/s )||0.15||0.15||0.15||0.15||0.15|
|Int. comm. speed|
|Via Xnet (n. neighbour)||1.25 GB/s||2.5 GB/s||5.0 GB/s||10.0 GB/s||20.0 GB/s|
|Via global router||80 MB/s||160 MB/s||320 MB/s||640 MB/s||1.28 GB/s|
Remarks: Apart from being roughly 2.5 times faster than the MasPar MP-1 (3.2.4), there is little difference between the MP-2 and the MP-1. The gain in speed relative to the MP-1 is accomplished by using a processor with a higher degree of bit-parallelism. This resulted in a higher performance at the expense of the number of data formats: only 32-bit and 64-bit data are allowed on the MP-2.
MasPar will market both the MP-1 and MP-2. In the view of the company there is a market for both. With a fixed budget one can make a choice for a system with larger memory, but slower or a faster system with a smaller memory.
Software and tools are exactly the same for both types of machines.
Measured Performances: In [#linpackbm#
Sat Feb 10 15:12:38 EST 1996