Dynamic load-distributed computer system using estimated expansion ratios and load-distributing method therefor

A load-distributed computer system comprising:

• a plurality of computers each including processors;
• a relay distributing unit for receiving a message for requesting a transaction process;
• and
• a channel communication network connected between said computers and said relay distributing unit, each of said computers comprising:
• a first load data measuring unit for measuring a load of said each of said computers;
• a transaction processing unit for processing transactions,
• said relay distributing unit comprising:
• a second load data measuring unit for receiving said load to calculate an estimated load in accordance with said load;
• a load data storing unit for storing said estimated load data;
• an executing computer selecting unit for calculating a plurality of estimated process time expansion ratios one for each of said computers, in accordance with said stored estimated load and the number of processors in each of said computers, calculating a plurality of load indexes, one for each of said computers, in accordance with said estimated process time expansion ratios, selecting one of said computers having the minimum load index in accordance with said load indexes, and causing said transaction process to be processed by said transaction processing unit of said selected computer.

A load-distributed computer system comprising:

• a plurality of computers each including processors each for receiving a message for requesting a transaction process;
• and
• an exchange/store unit connected to said computers,
• each of said computers comprising:
• a first load data measuring unit for measuring a load of said each of said computers;
• a transaction processing unit for processing transactions,
• a second load data measuring unit for receiving said load to calculate an estimated load in accordance with said load;
• a load data storing unit for storing said estimated load data;
• an executing computer selecting unit for calculating a plurality of estimated process time expansion ratios one for each of said computers, in accordance with said stored estimated load and the number of processors in each of said computers, calculating a plurality of load indexes, one for each of said computers, in accordance with said estimated process time expansion ratios, determining whether or not said each of said computers is to process said transaction process in accordance with said load indexes, causing said transaction process to be processed by said transaction processing unit when said each of said computers is to process said transaction process, and transmitting said message via said exchange/store unit to another computer when said each of said computer is not to process said transaction process.