cp.async.bulk.prefetch GPU Virtual ISA NVIDIA

cp.async.bulk.prefetch Data Movement and Conversion Instructions

cp.async.bulk.prefetch.L2.src{.level::cache_hint} [srcMem], size {, cache_policy};

cp.async.bulk.prefetch is a non-blocking instruction which may initiate an asynchronous prefetch of data from the location specified by source address operand srcMem, in.src statespace, to the L2 cache.

Encoding

PTX is a virtual instruction set. It has no single, stable native binary encoding - the compiler lowers this instruction to different native machine code depending on the selected NVIDIA target architecture (compute capability). This page intentionally shows no bit-diagram; see the target/version requirements below for what governs how this instruction compiles.
PTX ISA Version Introduced PTX ISA 8.0
Minimum Target sm_90

Syntax Forms

One mnemonic covers many type / state-space / scope / modifier combinations - each row below is an independently valid form.

Syntax Data Types State Space(s) Modifiers Min. Target Description
cp.async.bulk.prefetch.L2.src{.level::cache_hint} [srcMem], size {, cache_policy}; sm_90 cp.async.bulk.prefetch is a non-blocking instruction which may initiate an asynchronous prefetch of data from the location specified by source address operand srcMem, in. (see the official PTX ISA docs for the full description)

Operands

At a Glance

Data Types -

Related

More in Data Movement and Conversion Instructions

Reference

NVIDIA PTX ISA

Description

cp.async.bulk.prefetch is a non-blocking instruction which may initiate an asynchronous prefetch of data from the location specified by source address operand srcMem, in.src statespace, to the L2 cache. The 32-bit operand size specifies the amount of memory to be prefetched in terms of number of bytes. size must be a multiple of 16. If the value is not a multiple of 16, then the behavior is undefined. The address srcMem must be aligned to 16 bytes. When the optional argument cache_policy is specified, the qualifier.level::cache_hint is required. (see the official PTX ISA docs for the full description)

Examples

cp.async.bulk.prefetch.L2.global                 [srcMem], size;

cp.async.bulk.prefetch.L2.global.L2::cache_hint  [srcMem], size, policy;

Reproduced from NVIDIA's official PTX ISA documentation for technical accuracy.

Sources