您好，感谢反馈，从上述修改--编译--安装--验证的流程上看，并无问题。当前需要明确一下：

1. 确保修改后的包正常安装，可以查看安装日志再次确认下；
2. 您这边测试验证的时候执行的是什么用例，麻烦提供下；

您好，感谢反馈，从上述修改--编译--安装--验证的流程上看，并无问题。当前需要明确一下：

1. 确保修改后的包正常安装，可以查看安装日志再次确认下；
2. 您这边测试验证的时候执行的是什么用例，麻烦提供下；

@Leewis

目前时针对hccl+hcomm的测试，cann等统一采用8.5.0。修改测试位置是“hcomm/src/algorithm/impl/coll_executor/coll_send_receive/coll_send_executor.cc”，求改处位在142行“u64 countLeft = param.DataDes.count;”添加一个debug测试信息“HCCL_DEBUG("Funny!!");”。编译通过，生成.run文件“cann-hcomm_8.5.0-beta.1_linux-aarch64.run”，并执行“bash ./build_out/cann-hcomm_8.5.0-beta.1_linux-aarch64.run --full”，提示安装成功。信息如下：

Verifying archive integrity... 100% SHA256 checksums are OK. All good.
Uncompressing CANN_HCOMM_RUN_PACKAGE 100%
[Hcomm] [2026-04-21 21:24:59] [INFO]: Start time:2026-04-21 21:24:59
[Hcomm] [2026-04-21 21:24:59] [INFO]: LogFile:/var/log/ascend_seclog/ascend_install.log
[Hcomm] [2026-04-21 21:24:59] [INFO]: InputParams:--full
[Hcomm] [2026-04-21 21:24:59] [INFO]: OperationLogFile:/var/log/ascend_seclog/operation.log
[Hcomm] [2026-04-21 21:24:59] [INFO]: Check version matched!
[Hcomm] [2026-04-21 21:24:59] [INFO]: version compatibility check successfully!
[Hcomm] [2026-04-21 21:24:59] [INFO]: base version is 8.5.0-beta.1.
[Hcomm] [2026-04-21 21:24:59] [INFO]: parent_dir value is [/usr/local] and children_dir value is [Ascend]
[Hcomm] [2026-04-21 21:24:59] [INFO]: [Ascend] belongs to root.
[Hcomm] [2026-04-21 21:24:59] [INFO]: [Ascend] permission is ok.
[Hcomm] [2026-04-21 21:24:59] [INFO]: parent_dir value is [/usr] and children_dir value is [local]
[Hcomm] [2026-04-21 21:24:59] [INFO]: [local] belongs to root.
[Hcomm] [2026-04-21 21:24:59] [INFO]: [local] permission is ok.
[Hcomm] [2026-04-21 21:24:59] [INFO]: parent_dir value is [/] and children_dir value is [usr]
[Hcomm] [2026-04-21 21:24:59] [INFO]: [usr] belongs to root.
[Hcomm] [2026-04-21 21:24:59] [INFO]: [usr] permission is ok.
[Hcomm] [2026-04-21 21:24:59] [INFO]: parent_dir value is [/] and children_dir value is [/]
[Hcomm] [2026-04-21 21:24:59] [INFO]: parent_dirs_permission_check succeeded
[Hcomm] [2026-04-21 21:24:59] [INFO]: version_installed:8.5.0-beta.1 host_only:false host_only_in_runpkg:false
[Hcomm] [2026-04-21 21:24:59] [INFO]: Hcomm package has been installed on the path /usr/local/Ascend, the version is 8.5.0-beta.1, and the version of this package is 8.5.0-beta.1, do you want to continue? [y/n]
y
[Hcomm] [2026-04-21 21:25:01] [INFO]: uninstall /usr/local/Ascend full
[Hcomm] [2026-04-21 21:25:01] [INFO]: step into run_hcomm_uninstall.sh ......
[Hcomm] [2026-04-21 21:25:01] [INFO]: uninstall target dir /usr/local/Ascend/cann, type full.
[Hcomm] [2026-04-21 21:25:02] [INFO]: uninstall hcomm tool begin...
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv
[Hcomm] [2026-04-21 21:25:02] [INFO]: hccl uninstalled successfully!
[Hcomm] [2026-04-21 21:25:02] [INFO]: hcomm tool uninstalled successfully!
[Hcomm] [2026-04-21 21:25:02] [INFO]: /usr/local/Ascend/cann/python/site-packages dir is not empty.
[Hcomm] [2026-04-21 21:25:02] [INFO]: /usr/local/Ascend/cann/python dir is not empty.
[Hcomm] [2026-04-21 21:25:03] [INFO]: Hcomm package uninstalled successfully! Uninstallation takes effect immediately.
[Hcomm] [2026-04-21 21:25:03] [INFO]: install /usr/local/Ascend full
[Hcomm] [2026-04-21 21:25:04] [INFO]: step into run_hcomm_install.sh ......
[Hcomm] [2026-04-21 21:25:04] [INFO]: install target dir /usr/local/Ascend/cann, type full.
[Hcomm] [2026-04-21 21:25:04] [INFO]: install upgradePercentage:10%
[Hcomm] [2026-04-21 21:25:05] [INFO]: install hcomm extension module begin...
[Hcomm] [2026-04-21 21:25:05] [INFO]: install python module package in /root/selfgz5448627198/hcomm/lib64/hccl-0.1.0-py3-none-any.whl
WARNING: Running pip install with root privileges is generally not a good idea. Try pip3 install --user instead.
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv
[Hcomm] [2026-04-21 21:25:05] [INFO]: install /root/selfgz5448627198/hcomm/lib64/hccl-0.1.0-py3-none-any.whl successfully!
[Hcomm] [2026-04-21 21:25:05] [INFO]: the hcomm extension module installed successfully!
[Hcomm] [2026-04-21 21:25:05] [INFO]: The package te is already installed in python default path. It is recommended to install it using the '--pylocal' parameter, install the package hcomm in the /usr/local/Ascend/cann/python/site-packages.
[Hcomm] [2026-04-21 21:25:05] [INFO]: hcomm do migrate user assets.
[Hcomm] [2026-04-21 21:25:06] [INFO]: install upgradePercentage:100%
[Hcomm] [2026-04-21 21:25:06] [INFO]: Upgrade base version successfully!
[Hcomm] [2026-04-21 21:25:06] [INFO]: Hcomm package installed successfully! The new version takes effect immediately.
Please make sure that
- LD_LIBRARY_PATH includes /usr/local/Ascend/cann/lib64
- PYTHONPATH includes /usr/local/Ascend/cann/python/site-packages
[Hcomm] [2026-04-21 21:25:07] [INFO]: End time:2026-04-21 21:25:07

编译安装成功hcomm之后，按照hccl-8.5.0的安装教程编译安装hccl。然后执行hccl中“mnt/model/zym/test/hccl/examples/01_point_to_point/01_send_recv”样例，先make文件，然后开启如下debug环境变量，并执行程序并将host文件打印到当前目录，具体执行如下：
export ASCEND_GLOBAL_LOG_LEVEL=0
export HCCL_DEBUG_CONFIG=TASK,ALG,RESOURCE
export HCCL_ENTRY_LOG_ENABLE=1
export ASCEND_SLOG_PRINT_TO_STDOUT=1
./send_recv 2>&1 | tee send_recv_debug2.log

由于改动的hcomm的代码是在npu设备内部的aicpu执行的，所以修改的设备debug信息日志需要在“root/ascend/log/debug/device-0”中查看。设备日志中目前的问题就是不会打印我添加的“Funny!!”信息，依然执行的是之前的程序代码，且由于添加debug信息，部分原始debug信息的显示代码行号应该有所变动，但目前执行依然没有变动，问题分析为修改的可执行文件没有替换成功。

初步分析是因为 HDK 版本比较旧，没有将 aicpu_hcomm.tar.gz 搬到 Device 侧

@qq_40734045 您好，请问您用的HDK版本是多少呢？

@qq_40734045 您好，请问您用的HDK版本是多少呢？

@maxinyuan1

25.2.3

感谢反馈，当前问题已定位是HDK版本较低的原因导致没有将实际修改的tar包搬到device侧，建议尝试更新HDK包试下。

感谢反馈，当前问题已定位是HDK版本较低的原因导致没有将实际修改的tar包搬到device侧，建议尝试更新HDK包试下。

@Leewis

目前支持开源社区的稳定版本是否有推荐？

感谢反馈，当前问题已定位是HDK版本较低的原因导致没有将实际修改的tar包搬到device侧，建议尝试更新HDK包试下。

@Leewis

目前支持开源社区的稳定版本是否有推荐？

@qq_40734045

目前高于25.2.3且最靠谱的版本就是25.5.2

@qq_40734045 您好，问题已定位清楚，替换对应HDK版本后问题已解决，当前issue暂时先关闭了，后续有相关问题欢迎在社区上提交issue交流讨论。