| 摘要 |
PROBLEM TO BE SOLVED: To provide the parallel computer which performs multinode simultaneous input/output processing at a high speed. SOLUTION: Calculation nodes 10 to 15 and input/output nodes 30 of the parallel computer are arranged like a matrix, and partial nodes out of plural calculation nodes 10 to 15 are provided with caches 50 to 52 as cache nodes 20 to 22, and input/output nodes 30 are provided with caches 53. In accordance with designation for the start of the parallel computer, one or more cache nodes 20 to 22 which can communicate with some of input/output nodes 30 are set, and one or more calculation nodes 10 to 15 which can communicate with cache nodes 20 to 22 are set. When calculation nodes 10 to 15 read out data from a secondary storage device 40, they transmit a data request message to communicatable cache nodes 20 to 22. Cache nodes 20 to 22 transmit data to calculation nodes 10 to 15 if data exists in caches 50 to 52, but cache nodes 20 to 22 read out data from the secondary storage device 40 to transmit it to calculation nodes 10 to 15 if data doesn't exist in caches 50 to 52. |
