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Ran 09 Oct 2022 02:43AM UTC

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Committed 09 Oct 2022 02:43AM UTC coverage: 86.119% (+0.5%) from 85.628%

Job # #813.1

Build Type

push

Committed by StellarBot

Commit Message

Merge #5883

5883: Optimization on LCI parcelport: uses LCI_putva r=hkaiser a=JiakunYan

### Background

LCI_putva: put iovec allocate

- LCI_putva transfers an `iovec`, which includes one medium message and multiple long messages. 
- It is a one-sided put operation, which means the target side doesn't need to post a `recv`. Instead, a completion entry will be pushed to a preconfigured LCI completion queue when all messages arrive. 
- Unlike RDMA, the sender side doesn't need to specify a remote registered buffer. LCI runtime will allocate and register the receive buffer.

### Changes on HPX parcelport layer
- No tag management on HPX layer, so no mutex lock.
- Only one "posting send and testing" on the sender side. (It can be further optimized.)
- No "posting receive and testing" on the receive side, so receiver_connection can be removed.

Co-authored-by: Jiakun Yan <jiakuny3@illinois.com>
Co-authored-by: Jiakun Yan <jiakunyan1998@gmail.com>

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2015863.2 hits per line

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