39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
#pragma once
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// Shared runtime switch for enabling the Intel NPU in OpenVINO code paths.
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//
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// NPU is DISABLED BY DEFAULT because the NPU plugin on some Intel platforms
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// (observed: Core Ultra 9 285K / Arrow Lake) crashes inside
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// ov::Core::compile_model or Ort::Session construction when compiling
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// multiple ONNX models in quick succession. That failure mode cannot be
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// caught by the surrounding try/catch (it fires on a plugin worker thread)
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// and takes down the host process.
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//
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// To opt into NPU (e.g. on a machine with a known-good NPU driver), set the
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// environment variable OPENVINO_ENABLE_NPU to 1 / true / yes / on before
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// launching the host process.
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//
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// Every OpenVINO device-selection site in this codebase consults this helper
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// rather than probing NPU unconditionally.
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#include <algorithm>
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#include <cctype>
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#include <cstdlib>
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#include <string>
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namespace ANSCENTER {
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inline bool IsOpenVINONpuEnabled() {
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static const bool enabled = [] {
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const char* v = std::getenv("OPENVINO_ENABLE_NPU");
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if (!v || !*v) return false;
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std::string s(v);
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std::transform(s.begin(), s.end(), s.begin(),
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[](unsigned char c) { return static_cast<char>(std::tolower(c)); });
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return s == "1" || s == "true" || s == "yes" || s == "on";
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}();
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return enabled;
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}
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}
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