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Resolve IBVerbs Loading Issues #648

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Merged
chhwang merged 3 commits into from
Oct 29, 2025
Merged

Resolve IBVerbs Loading Issues #648

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6cdbfcb
wip
caiomcbr Oct 17, 2025
eee94bf
wip
caiomcbr Oct 18, 2025
9eadafd
Merge branch 'main' into caiorocha/fix_ibverbs_load
chhwang Oct 29, 2025
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10 changes: 10 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -148,6 +148,16 @@ find_package(IBVerbs)
find_package(NUMA REQUIRED)
find_package(Threads REQUIRED)

set(CMAKE_COLOR_DIAGNOSTICS ON)
function(msg_red text)
string(ASCII 27 ESC)
message("${ESC}[31m${text}${ESC}[0m")
endfunction()

if(NOT IBVERBS_FOUND)
msg_red("libibverbs not found. Install libibverbs-dev or rdma-core-devel.")
endif()

include(FetchContent)
FetchContent_Declare(json URL https://github.com/nlohmann/json/releases/download/v3.11.3/json.tar.xz)
FetchContent_MakeAvailable(json)
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13 changes: 12 additions & 1 deletion src/include/ibverbs_wrapper.hpp
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Expand Up @@ -17,7 +17,18 @@ struct IBVerbs {
// Static method to initialize the library
static void initialize() {
initialized = true;
handle = dlopen("libibverbs.so", RTLD_NOW);

// Try different versions of libibverbs
const char* lib_possible_names[] = {
"libibverbs.so",
"libibverbs.so.1",
};
for (int i = 0; lib_possible_names[i] != nullptr; i++) {
handle = dlopen(lib_possible_names[i], RTLD_NOW);
if (handle) {
break;
}
}
if (!handle) {
throw mscclpp::IbError("Failed to load libibverbs: " + std::string(dlerror()), errno);
}
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