struct transfer_id

Declaration

struct transfer_id { /* full declaration omitted */ };

Description

Uniquely identifies one version of a buffer's (distributed) data at task granularity. The structure is used to tie together the sending and receiving ends of peer-to-peer data transfers.

Declared at: include/types.h:111

Member Variables

task_id consumer_tid = -1

The first task (by order of task id) to require this version of the buffer.

buffer_id bid = -1

The buffer's id.

reduction_id rid = no_reduction_id

Since a task cannot require data both as part of a reduction and with its final value at the same time, this field is not necessary to identify the transfer version, but is used for sanity checks. It might become additionally valuable once we allow the user to specify the buffer subrange each reduction is targeting.

Member Function Overview

• transfer_id()
• transfer_id(task_id consumer_tid, buffer_id bid, reduction_id rid = no_reduction_id)

Friend Function Overview

• operator!=(const transfer_id & lhs, const transfer_id & rhs) → friend bool
• operator==(const transfer_id & lhs, const transfer_id & rhs) → friend bool

Member Functions

¶transfer_id()

Declared at: include/types.h:126

---

¶transfer_id(task_id consumer_tid,
            buffer_id bid,
            reduction_id rid = no_reduction_id)

Declared at: include/types.h:127

Parameters

task_id consumer_tid

buffer_id bid

reduction_id rid = no_reduction_id

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Friend Functions

¶friend bool operator!=(const transfer_id& lhs,
                       const transfer_id& rhs)

Declared at: include/types.h:132

Parameters

const transfer_id& lhs

const transfer_id& rhs

---

¶friend bool operator==(const transfer_id& lhs,
                       const transfer_id& rhs)

Declared at: include/types.h:129

Parameters

const transfer_id& lhs

const transfer_id& rhs

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