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Fix more int overflow during quant (PPL/CUDA). (#6563)

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* Fix more int overflow during quant.

* Fix some more int overflow in softmax.

* Revert back to int64_t.
This commit is contained in:
DAN™
2024-04-28 18:38:44 -04:00
committed by GitHub
parent 7bb36ccf91
commit e00b4a8f81
2 changed files with 88 additions and 88 deletions
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8
ggml-cuda/softmax.cu
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@@ -28,7 +28,7 @@ static __global__ void soft_max_f32(const float * x, const float * mask, const f
extern __shared__ float data_soft_max_f32[];
float * buf_iw = data_soft_max_f32; // shared memory buffer for inter-warp communication
// shared memory buffer to cache values between iterations:
float * vals = vals_smem ? buf_iw + WARP_SIZE : dst + rowx*ncols;
float * vals = vals_smem ? buf_iw + WARP_SIZE : dst + (int64_t)rowx*ncols;
float max_val = -INFINITY;
@@ -40,8 +40,8 @@ static __global__ void soft_max_f32(const float * x, const float * mask, const f
break;
}
const int ix = rowx*ncols + col;
const int iy = rowy*ncols + col;
const int64_t ix = (int64_t)rowx*ncols + col;
const int64_t iy = (int64_t)rowy*ncols + col;
const float val = x[ix]*scale + (mask ? mask[iy] : 0.0f) + (pos ? slope*pos[col] : 0.0f);
@@ -109,7 +109,7 @@ static __global__ void soft_max_f32(const float * x, const float * mask, const f
return;
}
const int idst = rowx*ncols + col;
const int64_t idst = (int64_t)rowx*ncols + col;
dst[idst] = vals[col] * inv_sum;
}
}