zhangyiss/mlx
1
0
Fork 0
mirror of https://github.com/ml-explore/mlx.git synced 2025-12-16 01:49:05 +08:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

LogCumSumExp (#2069)

Browse Source
This commit is contained in:
Yury Popov
2025-04-13 11:27:29 +03:00
committed by GitHub
parent 7275ac7523
commit e9e268336b
15 changed files with 209 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
mlx/backend/cpu/scan.cpp
View File

@@ -3,6 +3,7 @@
#include <cassert>
#include "mlx/backend/common/utils.h"
#include "mlx/backend/cpu/binary_ops.h"
#include "mlx/backend/cpu/copy.h"
#include "mlx/backend/cpu/encoder.h"
#include "mlx/backend/cpu/simd/simd.h"
@@ -226,6 +227,16 @@ void scan_dispatch(
scan_op<T, U>(in, out, axis, reverse, inclusive, op, init);
break;
}
case Scan::LogAddExp: {
auto op = [](U a, T b) {
return detail::LogAddExp{}(a, static_cast<U>(b));
};
auto init = (issubdtype(in.dtype(), floating))
? static_cast<U>(-std::numeric_limits<float>::infinity())
: std::numeric_limits<U>::min();
scan_op<T, U>(in, out, axis, reverse, inclusive, op, init);
break;
}
}
}