From 048e5baef9eb45759842c0f33b16fdda3d7251e5 Mon Sep 17 00:00:00 2001
From: "A. Unique TensorFlower" <gardener@tensorflow.org>
Date: Fri, 12 Feb 2021 11:58:35 -0800
Subject: [PATCH] Delete dead code in memory space assignment
PiperOrigin-RevId: 357239017
Change-Id: I0db7ea18c4580dfef833a30bbccd0bba6f71dcb9
---
tensorflow/compiler/xla/service/memory_space_assignment.cc | 6 ------
tensorflow/compiler/xla/service/memory_space_assignment.h | 6 ------
2 files changed, 12 deletions(-)
diff --git a/tensorflow/compiler/xla/service/memory_space_assignment.cc b/tensorflow/compiler/xla/service/memory_space_assignment.cc
index 10c3d60f202..a0650650f88 100644
--- a/tensorflow/compiler/xla/service/memory_space_assignment.cc
+++ b/tensorflow/compiler/xla/service/memory_space_assignment.cc
@@ -254,12 +254,6 @@ float MemorySpaceAssignmentCostAnalysis::GetInstructionElapsedDueToCompute(
cost_analysis_.per_second_rate(HloCostAnalysis::kTranscendentalsKey));
}
-float MemorySpaceAssignmentCostAnalysis::
- GetInstructionElapsedDueToMemorySlowdown(int64 bytes) const {
- return bytes /
- cost_analysis_.per_second_rate(HloCostAnalysis::kBytesAccessedKey);
-}
-
float MemorySpaceAssignmentCostAnalysis::GetInstructionElapsedDueToMemory(
const HloInstruction& instruction,
absl::optional<int64> operand_in_alternate_mem,
diff --git a/tensorflow/compiler/xla/service/memory_space_assignment.h b/tensorflow/compiler/xla/service/memory_space_assignment.h
index 7bffcc25523..f6104d6ba98 100644
--- a/tensorflow/compiler/xla/service/memory_space_assignment.h
+++ b/tensorflow/compiler/xla/service/memory_space_assignment.h
@@ -123,12 +123,6 @@ class MemorySpaceAssignmentCostAnalysis {
absl::optional<int64> operand_in_alternate_mem = absl::nullopt,
bool output_in_alternate_mem = false) const;
- // Returns the elapsed time in seconds that other BufferIntervals are slowed
- // down, due to the prefetching of current bytes. Assuming other
- // BufferIntervals needs default memory bandwidth, and only current
- // BufferInterval is prefetched.
- float GetInstructionElapsedDueToMemorySlowdown(int64 bytes) const;
-
// Returns the estimated elapsed duration of the instruction in seconds. It
// assumes all operands and outputs of the instruction are in the default
// memory.