PURPOSE: To provide the computer batch processing control unit which can improve the total throughput by flexibly placing process execution sections in operation.

CONSTITUTION: A computer system which allocates ≥2 computers to ≥2 process execution sections and performs batch processing checks necessary process quantities by process execution sections each time the batch processing is accepted or ended by a batch processing request acceptance program 16 and a batch processing execution monitor program 17, and allocate execution sections of the computers which are large in request process quantity preferentially by a batch processing execution control program 18 to level the total batch throughput, on the basis of which a batch processing execution program 19 performs the batch processing.