Cette communication dkcrit l'implantation et l'utilisation des codes aux 616ments finis DYNA et NIKE dkvelopp6s au LLNL, sur des PC. Les versions de ces codes conviennent pour la modCLisation de ph6nomtnes sur PC couramment effectukes sur ordinateurs centraux ou stations de travail. Le transcodage complet du programme rend possible la simulation de tous les problkmes pouvant Ctre rksolus sur CRAY, systkmes VMS ou UNIX. Les avantages de cette approche sont principalement larauction des coGts

more »

... logiciel que matkriel et la simplicit6 d'utilisation. De plus des augmentations de la rapiditk de calcul peuvent 2tre obtenues avec l'implantation de coprocesseurs numkriques. Abstract -The implementation and utility of 80386/80486 personal computer (PC) versions of the Lawrence Livermore National Laboratory developed DYNA and NIKE finite element codes are described and evaluated in this paper. These code conversions provide for the PC modeling of problems that are currently analyzed on mainframes, mini-computers, and workstations. A comprehensive conversion of the entire source code allows for simulation of all probIems that can be run on the CRAY, VMS, and UNIX systems. Some advantages of this approach are lower hardware and software costs, a convenient upgrade path for existing PC users, and simplicity for novice or casual users that do not have the time or inclination to learn UNIX. In addition, low cost speed improvements are easily implemented with the addition of the 316714167 numeric co-processors from Weitek or with the more expensive board-based 1-860 chip options. '4 Work performed under the auspices of the U.S. Department of Energy by the Lawrence Livermore National Laboratory under contract No. W-7405ENG-48. Article published online by EDP Sciences and available at http://dx.