Machine type: Vectorprocessor.
Models: S3600/120, S3600/140, S3600/160, S3600/180.
Operating system: VOS3/HAP/ES (IBM MVS compatible) and OSF/1.
Compilers: FORT77/HAP vectorising Fortran 77, C.
The speed differences between the different models stem from replication of the multiply/add pipe in the models S3600/120--180. The /160 and /180 models have respectively two- and four-fold sets of a separate add- and a multifunctional multiply/add vector pipes. This should lead to a maximum of 3 results per clock cycle per pipe set. So, contrary to the information given by the vendor, the maximum performance of, e.g., the /180 should in some situations be 3 Gflop/s instead of 2.
A unique feature of the S3600, as in its direct predecessor the S-820, is that all machines of the series are air cooled. All other machines in this class rely at least on water cooling.