The Austrian Center for Parallel Computation (ACPC) is acooperative research organization founded in 1989 to promoteresearch and education in the field of software for parallelcomputer systems. The areas in which the ACPC is activeinclude algorithms, languages, compilers, programmingenvironments, and applications for parallel andhigh-performance computing systems.This volume contains the proceedings of the FirstInternational Conference of the SCPC, held in Salzburg,Austria, September 30 - October 2, 1991. Authors from 15countries submitted 66 papers, from which 28 were selectedand presented at the conference. They appear in this volumetogether with 8 invited papers by distinguished researchers.Based on the quality of the papers presented and theresponse of the participants, the ACPC has decided toorganize a conference every other year. The second ACPCconference will take place in Vienna in June 1993.