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add ifdefs to enable NVHPC as device compiler #3801

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Mar 14, 2024
+5 −1
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add ifdefs to enable NVHPC as device compiler #3801

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4 changes: 4 additions & 0 deletions Src/Base/AMReX_Algorithm.H
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Original file line number Diff line number Diff line change
Expand Up @@ -289,7 +289,11 @@ int clz (T x) noexcept;
AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE
int clz_generic (std::uint8_t x) noexcept
{
#if !defined(__NVCOMPILER)
static constexpr int clz_lookup[16] = { 4, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 };
#else
constexpr int clz_lookup[16] = { 4, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 };
#endif
auto upper = x >> 4;
auto lower = x & 0xF;
return upper ? clz_lookup[upper] : 4 + clz_lookup[lower];
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2 changes: 1 addition & 1 deletion Src/Base/AMReX_INT.H
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Expand Up @@ -31,7 +31,7 @@ namespace amrex {
}
#endif

#if (defined(__x86_64) || defined (__aarch64__)) && !defined(_WIN32) && (defined(__GNUC__) || defined(__clang__))
#if (defined(__x86_64) || defined (__aarch64__)) && !defined(_WIN32) && (defined(__GNUC__) || defined(__clang__)) && !defined(__NVCOMPILER)

#define AMREX_INT128_SUPPORTED 1

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