如何调试 example 中的代码

[xuxiangwork]

挺久没有接触 c++ 代码，想通过调试阅读 example 的代码，通过 vscode 配置了一下 launch.json ，preLaunchTask 没问题，但是调试失败，错误信息如下：

=thread-group-added,id="i1"
GNU gdb (Ubuntu 8.2-0ubuntu1) 8.2
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Warning: Debuggee TargetArchitecture not detected, assuming x86_64.
=cmd-param-changed,param="pagination",value="off"
Stopped due to shared library event (no libraries added or removed)
Loaded '/lib64/ld-linux-x86-64.so.2'. Symbols loaded.
[Inferior 1 (process 9764) exited with code 0177]
The program '/home/work/app/plato/bazel-bin/example/pagerank' has exited with code 177 (0x000000b1).

配置的 launch.json 如下：

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "(gdb+bazel) Launch Debug",
            "preLaunchTask": "Bazel Build (Debug)",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceFolder}/bazel-bin/${relativeFileDirname}/${fileBasenameNoExtension}",
            // 用 pagerank 尝试一下
            "args": [
                "--input",
                "${workspaceFolder}/data/graph/v100_e2150_ua_c3.csv",
                "--output",
                "/tmp/pagerank"
            ],
            "stopAtEntry": true,
            "cwd": "${workspaceFolder}",
            // "cwd": "${workspaceFolder}/bazel-bin/${relativeFileDirname}/${fileBasenameNoExtension}.runfiles/__main__",
            "environment": [],
            "externalConsole": false,
            "MIMode": "gdb",
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": false
                }
            ]
        },
    ]
}

还请不吝赐教

[ustcyu]

Plato是基于MPI的分布式计算框架，如果要本地执行，可参考：
https://github.com/Tencent/plato/blob/master/scripts/run_pagerank_local.sh