Experience of running PIAF on the CS-2 at CERN

. A 32-node Meiko CS-2 MIMD machine has been installed at CERN as part of an ESPRIT project funded by the European Community. It is intended that this machine be used by CERN to run codes developed at CERN and elsewhere and to thereby demonstrate the feasibility of using a CS-2 in a demanding high energy physics environment. One part of the project deals with interactive data analysis using PIAF (Parallel Interactive Analysis Facility), a system developed at CERN for carrying out queries on very large databases of several gigabytes in parallel [1]. 1 PIAF software The PIAF system is based on the PAW (Physics Analysis Workstation) data analysis and visualization package also developed at CERN [2]. Whereas PAW is basically intended to run stand-alone on a variety of platforms ranging from small microcomputers to mainframes, PIAF is designed to interface with PAW to give the user transparent access to high-performance computing facilities which are physically located elsewhere. ..