From 1194cdb1ba090507cfcbc079a9c8c0bd84fef1f7 Mon Sep 17 00:00:00 2001
From: Mohit Sharma <mohit21sharma.ms@gmail.com>
Date: Tue, 10 Dec 2024 10:58:01 +0000
Subject: [PATCH] remove grouped_topk

---
 .../layers/moe/fused_moe_rocm.py              | 52 -------------------
 1 file changed, 52 deletions(-)
 delete mode 100644 server/text_generation_server/layers/moe/fused_moe_rocm.py

diff --git a/server/text_generation_server/layers/moe/fused_moe_rocm.py b/server/text_generation_server/layers/moe/fused_moe_rocm.py
deleted file mode 100644
index 68accb99..00000000
--- a/server/text_generation_server/layers/moe/fused_moe_rocm.py
+++ /dev/null
@@ -1,52 +0,0 @@
-# coding=utf-8
-# Copyright 2023, 2024 DeepSeek-AI and The HuggingFace Inc. team. All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-from typing import Tuple
-
-import torch
-import torch.distributed
-
-
-# TODO: Remove the functions once moe_kernel are built for ROCM
-def grouped_topk(
-    hidden_states: torch.Tensor,
-    gating_output: torch.Tensor,
-    topk: int,
-    renormalize: bool,
-    num_expert_group: int = 0,
-    topk_group: int = 0,
-) -> Tuple[torch.Tensor, torch.Tensor]:
-    scores = torch.softmax(gating_output, dim=-1)
-    num_token = scores.shape[0]
-    group_scores = (
-        scores.view(num_token, num_expert_group, -1).max(dim=-1).values
-    )  # [n, n_group]
-    group_idx = torch.topk(group_scores, k=topk_group, dim=-1, sorted=False)[
-        1
-    ]  # [n, top_k_group]
-    group_mask = torch.zeros_like(group_scores)  # [n, n_group]
-    group_mask.scatter_(1, group_idx, 1)  # [n, n_group]
-    score_mask = (
-        group_mask.unsqueeze(-1)
-        .expand(num_token, num_expert_group, scores.shape[-1] // num_expert_group)
-        .reshape(num_token, -1)
-    )  # [n, e]
-    tmp_scores = scores.masked_fill(~score_mask.bool(), 0.0)  # [n, e]
-    topk_weights, topk_ids = torch.topk(tmp_scores, k=topk, dim=-1, sorted=False)
-
-    if renormalize:
-        topk_weights = topk_weights / topk_weights.sum(dim=-1, keepdim=True)
-
-    return topk_weights, topk_ids