| 摘要 |
A high-efficiency pre-stack time migration velocity analysis method. The method includes: applying for a plurality of processes, determining one of the processes to be a main process, and determining the rest of the processes to be sub-processes; determining allocation information; allocating a memory space to each sub-process; allocating, by the main process, a pre-stack time migration velocity analysis position and a pre-stack earthquake data track to each sub-process according to the allocation information; using, by each sub-process, the pre-stack time migration velocity analysis position and the pre-stack earthquake data track to perform pre-stack time migration, generating a pre-stack time migration result and sending the pre-stack time migration result to the main process; and obtaining, by the main process, a pre-stack time migration velocity analysis result according to the pre-stack time migration results sent by all the sub-processes, thereby remarkably improving the calculation speed and shortening the operation time. |
