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<br />4. COMPUTER EQUIPMENT REQUIREMENTS <br /> <br />The HEC-2 computer program was written for use on the CDC 6600, but <br />may be used with little or no change on most medium to large computers <br />such as the IBM 370 and UNIVAC 1108. The following table shows approx- <br />imate memory requirements and compilation and execution times for vari- <br />ous computers. <br /> <br />TABLE 1 <br />COMPUTER MEMORY AND TIME REQUIREMENTS <br /> <br />Time Requirements <br /> <br />Computer <br /> <br />Memory Requirement <br />Words (Decimal) <br /> <br />Compile <br /> <br />Standard Tests* <br />Execution <br /> <br />CDC 7600 <br />CDC 6600 <br />UNIVAC 1108 <br />IBM 370/168 <br />HONgYWgLL CS6058 <br />HARRIS S120 <br /> <br />32000 <br />32000 <br />32000 <br />1/ <br />460"002/ <br />9600~ <br /> <br />3.9 sec <br />24.1 sec <br />35.0 sec <br />121.4 sec <br />59.6 see <br />6 min 42.0 sec <br /> <br />3.7 sec <br />22.3 sec <br />35.0 sec <br />27.0 sec <br />85.7 sec <br />74.0 sec <br /> <br />*Standard Test are contained in Exhibit 1 of the HEC-2 Water Surface Profiles, <br />Programmers Manual, November 1976. <br /> <br />!!OS/VS2; 248 K bytes virtual memory <br />y 3 bytes/word <br /> <br />2 <br />