In the Ascend C operator program code, you can use the AscendC::DumpTensor, AscendC::printf, AscendC::PrintTimeStamp, and ascendc_assert APIs to print related debugging information, and enable the dump configuration by using aclInit or directly configuring the acl.json file to export the debugging information of the Ascend C operator kernel. This tool provides the capability of parsing debugging information in offline mode to help users obtain and parse the debugging information, that is, parsing the .bin file into a readable format. For details about usage example of this tool, see show_kernel_debug_data sample.

show_kernel_debug_data can be called by multiple users concurrently. However, users need to specify different flushing paths. Otherwise, the flushed content may be overwritten.

Applicability

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product / Atlas A3 inference product	√
Atlas A2 training product / Atlas A2 inference product	√
Atlas 200I/500 A2 inference product	√
Atlas inference product	√
Atlas training product	x

Tool Installation

Install the tool.

The tool is released with the CANN software package. (For details about how to install the CANN software package, see Environment Setup.) The default path is ${INSTALL_DIR}/tools/show_kernel_debug_data. Replace ${INSTALL_DIR} with the CANN component directory. For example, if the installation is performed by the root user, the default file storage path is /usr/local/Ascend/cann.
Set environment variables.
- Install the Ascend-CANN-Toolkit package as the root user:
```
source /usr/local/Ascend/cann/set_env.sh
```
- Install the Ascend-CANN-Toolkit package as a non-root user:
```
source ${HOME}/Ascend/cann/set_env.sh
```
Check whether the tool is successfully installed.
Run the following command. If --help or -h is displayed, the tool environment is normal and the functions are normal.
```
show_kernel_debug_data -h
```

How to Use

Command line

show_kernel_debug_data <bin_file_path> [<output_path>]

Parameter	Optional/Required	Description
<bin_file_path>	Required	BIN file to which the kernel debugging information is flushed or the path that contains the BIN file name, for example, /input/dump_workspace.bin.
<output_path>	Optional	Path for saving the parsing result, for example, /output_dir. The default path is the path where the current command is executed.

API

Obtains the debugging information on the kernel and parses the information into a readable file. The function prototype is as follows:

def show_kernel_debug_data(bin_file_path: str, output_path: str = './') -> None

Input parameters of the function are as follows. The function does not have output parameters and return values.

bin_file_path: BIN file to which the kernel debugging information is flushed or the path that contains the BIN file name. The value is of the string type.
output_path: path for saving the parsing result. The value is of the string type. The default path is the path where the current API call script is located.

The call sample code is as follows:

        
             from show_kernel_debug_data import show_kernel_debug_data
show_kernel_debug_data(./input/dump_workspace.bin)

Result

The directory structure of the parsing result file is as follows: The dump_data directory contains the parsing results of the DumpTensor and PrintTimeStamp APIs. index0 corresponds to the printing result when the second parameter desc of the DumpTensor API is set to 0. loop0 indicates the data printing of the first block after splitting.

├ ${output_path}
├── PARSER_${timestamp}                     // ${timestamp} indicates the timestamp.
     ├── dump_data
     │   ├── 0                             // Parsing result of core 0
     │   ├── core_0_index_0_loop_0.bin     // Flushing information of core 0, desc 0, and progress 0
     │   ├── core_0_index_0_loop_0.txt     // Parsing result of core 0, desc 0, and progress 0
      ...
     │   ├── core_0_index_2_loop_15.bin    // Flushing information of core 0, desc 2, and progress 15
     │   ├── core_0_index_2_loop_15.txt    // Parsing result of core 0, desc 2, and progress 15
     │   └── time_stamp_core_0.csv         // Timestamp information
     │   ├── 1                             // Parsing result of core 1
     │   ├── 2                             // Parsing result of core 2
      ...         
     │   └── index_dtype.json              // Mapping between indexes and data types
     └── parser.log                         // Parsing log, including the print information of the printf and ascendc_assert APIs