如何调试 BOINC No usable GPUs found

如果你在带有 GPU 的系统上运行 BOINC，你可能会遇到错误消息 No usable GPUs found。即使你已安装 GPU 并且工作正常，也可能发生这种情况。以下是修复方法。

boinc_no_usable_gpus.txt

GPU detection failed: process was terminated by signal 48
read_coproc_info_file() returned error -108
No usable GPUs found

GPU detection failed: process was terminated by signal 48
read_coproc_info_file() returned error -108
No usable GPUs found

首先，检查 /var/lib/boinc/coproc_info.xml。它通常包含如下错误消息

coproc_info.xml

    <coprocs>
<warning>NVIDIA drivers present but no GPUs found</warning>
<warning>ATI: libaticalrt.so: cannot open shared object file: No such file or directory</warning>
<warning>No OpenCL GPUs or Accelerators found</warning>
<warning>OpenCL library present but no OpenCL-capable devices found</warning>
    </coprocs>

    <coprocs>
<warning>NVIDIA drivers present but no GPUs found</warning>
<warning>ATI: libaticalrt.so: cannot open shared object file: No such file or directory</warning>
<warning>No OpenCL GPUs or Accelerators found</warning>
<warning>OpenCL library present but no OpenCL-capable devices found</warning>
    </coprocs>

在这种情况下，错误消息是 ATI: libaticalrt.so: cannot open shared object file: No such file or directory。这意味着 libaticalrt.so 文件缺失。

我们现在需要找到包含 libaticalrt.so 的包。在 Ubuntu 上，你可以使用 apt-file 包来搜索包含该文件的包：

apt_file_search_libaticalrt.sh

sudo apt install apt-file
sudo apt-file update
apt-file search libaticalrt.so

sudo apt install apt-file
sudo apt-file update
apt-file search libaticalrt.so

在这种特定情况下，此包来自 fglrx 驱动程序，该驱动程序在较新的 Ubuntu 版本中不可用。

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