Upgrade of a Multi-User Computer System

请求提供资金，以升级一个将共享的计算机系统 在四名教职员工，他们的同事和学生中。 目前的系统，基于一个过时的岭32计算机， 不足以处理一般晶体学的任务， 计算，最小二乘优化蛋白质结构， 原子水平，蛋白质动力学，能量最小化，表面 吸附，并要求作为主机的埃文斯 Sutherland 300彩色绘图仪 升级到 Ridge 5100计算机系统将使我们的吞吐量增加 10倍，并允许我们解决和完善的三维结构， 对于我们目前的计算来说， 能力的 选择升级的Ridge计算机并不 不仅成本效益高，而且还将允许所有直接转移 过去五年开发的软件。

Funds are requested to upgrade a computer system to be shared among four faculty members, their associates and their students. The present system, based on an outdated Ridge 32 computer, is inadequate to handle the tasks of general crystallographic computing, least-squares refinements of protein structures at the atomic level, protein dynamics, energy minimization, surface adsorption, and the requirements as a host machine for an Evans and Sutherland 300 color graphics instrument. An upgrade to a Ridge 5100 computer system will increase our throughput by a factor of 10, and allow us to solve and refine the 3-D structures of macromolecules too large for our present computational capabilities. Selection of an upgraded Ridge computer is not only cost-effective, but also will permit direct transfer of all software developed over the last five years.