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fix: print dlerror if dlopen fails #4485

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merged 2 commits into from
Dec 22, 2024
Merged

fix: print dlerror if dlopen fails #4485

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b3063df
fix: print dlerror if dlopen fails
njzjz Dec 22, 2024
40d2f54
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Dec 22, 2024
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8 changes: 7 additions & 1 deletion source/api_cc/src/common.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -390,7 +390,13 @@
if (!dso_handle) {
throw deepmd::deepmd_exception(
dso_path +
" is not found! You can add the library directory to LD_LIBRARY_PATH");
" is not found or fails to load! You can add the library directory to "
"LD_LIBRARY_PATH."
#ifndef _WIN32
" Error message: " +
std::string(dlerror())

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source/api_cc/src/common.cc#L396-L397 

Added lines #L396 - L397 were not covered by tests
#endif
);

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}
}

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4 changes: 4 additions & 0 deletions source/lib/src/gpu/cudart/cudart_stub.cc
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Expand Up @@ -25,6 +25,10 @@ void *DP_cudart_dlopen(char *libname) {
#endif
if (!dso_handle) {
std::cerr << "DeePMD-kit: Cannot find " << libname << std::endl;
#ifndef _WIN32
std::cerr << "DeePMD-kit: Error message: " << std::string(dlerror())
<< std::endl;
#endif
return nullptr;
}
std::cerr << "DeePMD-kit: Successfully load " << libname << std::endl;
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