issue/680-为mulmat添加alpha参数算子

include/infinicore/ops/matmul.hpp

@@ -5,7 +5,7 @@
 
 namespace infinicore::op {
 
-Tensor matmul(Tensor a, Tensor b);
-void matmul_(Tensor c, Tensor a, Tensor b);
+Tensor matmul(Tensor a, Tensor b, float alpha = 1.0f);
+void matmul_(Tensor c, Tensor a, Tensor b, float alpha = 1.0f);
 
 } // namespace infinicore::op

python/infinicore/ops/matmul.py

@@ -2,10 +2,10 @@ from infinicore.lib import _infinicore
 from infinicore.tensor import Tensor
 
 
-def matmul(input, other, *, out=None):
+def matmul(input, other, *, alpha=1.0, out=None):
     if out is None:
-        return Tensor(_infinicore.matmul(input._underlying, other._underlying))
+        return Tensor(_infinicore.matmul(input._underlying, other._underlying, alpha))
 
-    _infinicore.matmul_(out._underlying, input._underlying, other._underlying)
+    _infinicore.matmul_(out._underlying, input._underlying, other._underlying, alpha)
 
     return out

src/infinicore/ops/matmul/matmul.cc

@@ -3,11 +3,11 @@
 
 namespace infinicore::op {
 
-Tensor matmul(Tensor a, Tensor b) {
-    return gemm(a, b, 1.0f, 0.0f);
+Tensor matmul(Tensor a, Tensor b, float alpha) {
+    return gemm(a, b, alpha, 0.0f);
 }
 
-void matmul_(Tensor c, Tensor a, Tensor b) {
-    Gemm::execute(c, a, b, 1.0f, 0.0f);
+void matmul_(Tensor c, Tensor a, Tensor b, float alpha) {
+    Gemm::execute(c, a, b, alpha, 0.0f);
 }
 } // namespace infinicore::op

src/infinicore/pybind11/ops/matmul.hpp

@@ -13,6 +13,7 @@ inline void bind_matmul(py::module &m) {
           &op::matmul,
           py::arg("a"),
           py::arg("b"),
+          py::arg("alpha") = 1.0f,
           R"doc(Matrix multiplication of two tensors.)doc");
 
     m.def("matmul_",
@@ -20,6 +21,7 @@ inline void bind_matmul(py::module &m) {
           py::arg("c"),
           py::arg("a"),
           py::arg("b"),
+          py::arg("alpha") = 1.0f,
           R"doc(In-place matrix multiplication.)doc");
 }