Documentation

ASCEND_CACHE_PATH

Description

If you want the build and run files to be flushed to a unified directory, you can set this environment variable to set the storage path of shared files.
  • The path specified by this environment variable can contain only uppercase letters, lowercase letters, digits, underscores (_), hyphens (-), and periods (.).
  • Ensure that the specified path exists and is valid. The execution user must have the read, write, and execute permissions.

The following table lists the files flushed by each component to ${ASCEND_CACHE_PATH}.

Table 1 Paths of shared files flushed to disks by components

Component

Path

File Content

Priority Specification

AOE

${ASCEND_CACHE_PATH}/aoe_data

Repository file,

which can be shared by multiple servers.

TUNE_BANK_PATH > ASCEND_CACHE_PATH> Default repository path

For details about the default repository path, see "Note" in TUNE_BANK_PATH.

ATC

${ASCEND_CACHE_PATH}/kernel_cache

Operator build cache file,

which can be shared by multiple devices on a server.

Parameter --op_compiler_cache_dir > ASCEND_CACHE_PATH > Default path ($HOME/atc_data)

TF Adapter

${ASCEND_CACHE_PATH}/kernel_cache

Operator build cache file,

which can be shared by multiple devices on a server.

TF Adapter configuration parameter op_compiler_cache_dir > ASCEND_CACHE_PATH > Default path ($HOME/atc_data)

For details about the TF Adapter configuration parameter op_compiler_cache_dir, see:

AscendCL

${ASCEND_CACHE_PATH}/kernel_cache

Operator build cache file,

which can be shared by multiple devices on a server.
  • Parameter OP_COMPILER_CACHE_DIR in the graph construction API aclgrphBuildInitialize > ASCEND_CACHE_PATH > Default path ($HOME/atc_data)
  • Parameter OP_COMPILER_CACHE_DIR in the aclgrphBuildModel API > ASCEND_CACHE_PATH > Default path ($HOME/atc_data)
  • Parameter ACL_OP_COMPILER_CACHE_DIR in the application build API aclCompileOpt > ASCEND_CACHE_PATH > Default path ($HOME/atc_data)

Example

export ASCEND_CACHE_PATH=/repo/task001/cache

Restrictions

  • File locking in Linux needs to be supported by the shared storage (such as NFSv4 and OceanStor Pacific 9950 and 9550). But if the storage, such as NFSv3, does not support file locking, you are advised storing files to local directories.
  • In the multi-server scenario, the AI processor model, firmware, driver, and CANN software version on each server must be the same.

Applicability

Atlas 200/300/500 Inference Product

Atlas Training Series Product

Parent topic: Files Flushed to Disks