25 lines
497 B
C
25 lines
497 B
C
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#pragma once
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#include <c10/macros/Macros.h>
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#include <type_traits>
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namespace at {
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/**
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Computes ceil(a / b)
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*/
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template <typename T, typename = std::enable_if_t<std::is_integral_v<T>>>
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C10_ALWAYS_INLINE C10_HOST_DEVICE T ceil_div(T a, T b) {
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return (a + b - 1) / b;
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}
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/**
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Computes ceil(a / b) * b; i.e., rounds up `a` to the next highest
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multiple of b
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*/
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template <typename T>
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C10_ALWAYS_INLINE C10_HOST_DEVICE T round_up(T a, T b) {
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return ceil_div(a, b) * b;
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}
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} // namespace at
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