| 摘要 |
Methods, apparatus, and products are disclosed for repeating DMA data transfer operations for nodes in a parallel computer that include: receiving, by a DMA engine on an origin node, a RGET data descriptor that specifies a DMA transfer operation data descriptor and a second RGET data descriptor, the second RGET data descriptor also specifying the DMA transfer operation data descriptor; creating, in dependence upon the RGET data descriptor, an RGET packet that contains the DMA transfer operation data descriptor and the second RGET data descriptor; processing the DMA transfer operation data descriptor included in the RGET packet, including performing a DMA data transfer operation between the origin node and a target node in dependence upon the DMA transfer operation data descriptor; and processing the second RGET data descriptor included in the RGET packet, thereby performing again the DMA transfer operation in dependence upon the DMA transfer operation data descriptor.
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