Add a reminder for the illegal memory error

[Yi-FanLi]

When using the GPU version of the neighbor stat code, one may encounter the following issue and the training will stop:

[2024-05-24 23:00:42,027] DEEPMD INFO    Adjust batch size from 1024 to 2048
[2024-05-24 23:00:42,139] DEEPMD INFO    Adjust batch size from 2048 to 4096
[2024-05-24 23:00:42,285] DEEPMD INFO    Adjust batch size from 4096 to 8192
[2024-05-24 23:00:42,628] DEEPMD INFO    Adjust batch size from 8192 to 16384
[2024-05-24 23:00:43,180] DEEPMD INFO    Adjust batch size from 16384 to 32768
[2024-05-24 23:00:44,341] DEEPMD INFO    Adjust batch size from 32768 to 65536
[2024-05-24 23:00:46,713] DEEPMD INFO    Adjust batch size from 65536 to 131072
2024-05-24 23:00:52.071120: E tensorflow/compiler/xla/stream_executor/cuda/cuda_event.cc:29] Error polling for event status: failed to query event: CUDA_ERROR_ILLEGAL_ADDRESS: an illegal memory access was encountered
2024-05-24 23:00:52.075435: F tensorflow/core/common_runtime/device/device_event_mgr.cc:223] Unexpected Event status: 1
/bin/sh: line 1: 1397100 Aborted 

This should be due to some issue of TensorFlow. One may use the environment variable DP_INFER_BATCH_SIZE to avoid this issue.

This PR remind the user to set a small DP_INFER_BATCH_SIZE to avoid this issue.

Summary by CodeRabbit

• Bug Fixes
  • Added a log message to guide users on setting the DP_INFER_BATCH_SIZE environment variable to avoid TensorFlow illegal memory access issues.

[coderabbitai]

Walkthrough

Walkthrough

A log message has been introduced in the BatchSizeManager class within the deepmd/utils/batch_size.py file. This message advises users on how to set the DP_INFER_BATCH_SIZE environment variable to mitigate a TensorFlow issue related to illegal memory access. This change aims to help users avoid potential runtime errors by adjusting the batch size appropriately.

Changes

File Path	Change Summary
deepmd/utils/batch_size.py	Added a log message in BatchSizeManager.__init__ to guide users on setting DP_INFER_BATCH_SIZE to avoid TensorFlow illegal memory access issues.

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Recent Review Details

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Review profile: CHILL

Commits

Files that changed from the base of the PR and between 8cd3cba and e46b232.

Files selected for processing (1)

• deepmd/utils/batch_size.py (1 hunks)

Files skipped from review due to trivial changes (1)

• deepmd/utils/batch_size.py

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