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cpu : add FLOOR, CEIL, ROUND and TRUNC unary operators (#16083)

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* CPU: Add support for FLOOR,CEIL,ROUND and TRUNC unary operators

- Added the operators to unary op enum
- Implemented API functions
- Implemented forward and unary-op logic in CPU backend
- Updated ggml_get_n_tasks
- Updated operators names array and static_assert
- Updated docs and enabled automatic tests

* docs: add documentation for ggml_trunc and ggml_trunc_inplace in ggml.h

* chore: remove trailing whitespace from ggml.h

* Remove unresolved merge markers

* Apply review suggestions: cleanup formatting, enum order and leftover artifacts

* Regenerate ops.md using create_ops_docs.py
This commit is contained in:
safranowith
2025-10-15 22:24:51 +03:00
committed by GitHub
parent 0cb7a0683b
commit 466c1911ab
8 changed files with 181 additions and 1 deletions
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44
ggml/include/ggml.h
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@@ -577,6 +577,10 @@ extern "C" {
GGML_UNARY_OP_EXP,
GGML_UNARY_OP_GELU_ERF,
GGML_UNARY_OP_XIELU,
GGML_UNARY_OP_FLOOR,
GGML_UNARY_OP_CEIL,
GGML_UNARY_OP_ROUND,
GGML_UNARY_OP_TRUNC,
GGML_UNARY_OP_COUNT,
};
@@ -1151,6 +1155,46 @@ extern "C" {
struct ggml_context * ctx,
struct ggml_tensor * a);
GGML_API struct ggml_tensor * ggml_floor(
struct ggml_context * ctx,
struct ggml_tensor * a);
GGML_API struct ggml_tensor * ggml_floor_inplace(
struct ggml_context * ctx,
struct ggml_tensor * a);
GGML_API struct ggml_tensor * ggml_ceil(
struct ggml_context * ctx,
struct ggml_tensor * a);
GGML_API struct ggml_tensor * ggml_ceil_inplace(
struct ggml_context * ctx,
struct ggml_tensor * a);
GGML_API struct ggml_tensor * ggml_round(
struct ggml_context * ctx,
struct ggml_tensor * a);
GGML_API struct ggml_tensor * ggml_round_inplace(
struct ggml_context * ctx,
struct ggml_tensor * a);
/**
* Truncates the fractional part of each element in the tensor (towards zero).
* For example: trunc(3.7) = 3.0, trunc(-2.9) = -2.0
* Similar to std::trunc in C/C++.
*/
GGML_API struct ggml_tensor * ggml_trunc(
struct ggml_context * ctx,
struct ggml_tensor * a);
GGML_API struct ggml_tensor * ggml_trunc_inplace(
struct ggml_context * ctx,
struct ggml_tensor * a);
// xIELU activation function
// x = x * (c_a(alpha_n) + c_b(alpha_p, beta) * sigmoid(beta * x)) + eps * (x > 0)
// where c_a = softplus and c_b(a, b) = softplus(a) + b are constraining functions