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[Java] Make cudaGetDeviceProperties compatible with CUDA 12 and 13 based on symbol presence #1323

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rapids-bot merged 1 commit into from
Sep 11, 2025
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[Java] Make cudaGetDeviceProperties compatible with CUDA 12 and 13 based on symbol presence #1323

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8 changes: 2 additions & 6 deletions java/cuvs-java/src/main/java22/com/nvidia/cuvs/internal/common/Util.java
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Original file line number Diff line number Diff line change
Expand Up @@ -65,15 +65,11 @@ private Util() {}
LINKER.downcallHandle(
cudaMemcpyAsync$address(), cudaMemcpyAsync$descriptor(), Linker.Option.critical(true));

private static final String cudaGetDevicePropertiesSymbolName =
"12".equals(System.getenv("RAPIDS_CUDA_MAJOR"))
? "cudaGetDeviceProperties_v2"
: "cudaGetDeviceProperties";

private static final MethodHandle cudaGetDeviceProperties$mh =
LINKER.downcallHandle(
SYMBOL_LOOKUP
.find(cudaGetDevicePropertiesSymbolName)
.find("cudaGetDeviceProperties") // CUDA 13+ symbol name
.or(() -> SYMBOL_LOOKUP.find("cudaGetDeviceProperties_v2")) // CUDA 12 symbol name
.orElseThrow(UnsatisfiedLinkError::new),
FunctionDescriptor.of(headers_h.C_INT, headers_h.C_POINTER, headers_h.C_INT));

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