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[TUTORIAL] Fix tedd tutorial after strategy change (#4947) 

* [TUTORIAL] Fix tedd tutorial after strategy change

* Remove scale, remove link to external gdoc
parent 09c55fd1
Showing with 82 additions and 88 deletions
tutorials/language/tedd.py
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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.
"""
Use Tensor Expression Debug Display (TEDD) for Visualization
============================================================
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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.
"""
Use Tensor Expression Debug Display (TEDD) for Visualization
============================================================
**Author**: `Yongfeng Gu <https://github.com/yongfeng-nv>`_
This is an introduction about using TEDD to visualize tensor expressions.
This is an introduction about using TEDD to visualize tensor expressions.
Tensor Expressions are scheduled with primitives. Although individual
primitives are usually easy to understand, they become complicated quickly
when you put them together. We have introduced an operational model of
schedule primitives in Tensor Expression in this document
(https://docs.google.com/document/d/1nmz00_n4Ju-SpYN0QFl3abTHTlR_P0dRyo5zsWC0Q1k/edit?usp=sharing)
to make it easier to understand
Tensor Expressions are scheduled with primitives. Although individual
primitives are usually easy to understand, they become complicated quickly
when you put them together. We have introduced an operational model of
schedule primitives in Tensor Expression.
* the interactions between different schedule primitives,
* the impact of the schedule primitives on the final code generation.
* the interactions between different schedule primitives,
* the impact of the schedule primitives on the final code generation.
The operational model is based on a Dataflow Graph, a Schedule Tree and an
IterVar Relationship Graph. Schedule primitives perform operations on these
The operational model is based on a Dataflow Graph, a Schedule Tree and an
IterVar Relationship Graph. Schedule primitives perform operations on these
graphs.
TEDD renders these three graphs from a given schedule. This tutorial demonstrates
how to use TEDD and how to interpret the rendered graphs.
TEDD renders these three graphs from a given schedule. This tutorial demonstrates
how to use TEDD and how to interpret the rendered graphs.
"""
from __future__ import absolute_import, print_function
......@@ -63,39 +61,38 @@ dilation=1
A = tvm.placeholder((in_size, in_size, in_channel, batch), name='A')
W = tvm.placeholder((kernel, kernel, in_channel, num_filter), name='W')
B = tvm.placeholder((1, num_filter, 1), name='bias')
with tvm.target.create("cuda"):
with tvm.target.create("llvm"):
t_conv = topi.nn.conv2d(A, W, stride, padding, dilation, layout='HWCN')
t_bias = topi.add(t_conv, B)
t_relu = topi.nn.relu(t_bias)
s = topi.generic.schedule_conv2d_hwcn([t_relu])
######################################################################
s = topi.generic.schedule_conv2d_hwcn([t_relu])
######################################################################
# Render Graphs with TEDD
# -----------------------
# We render graphs to see the computation
# and how it is scheduled.
# If you run the tutorial in a Jupyter notebook, you can use the following commented lines
# We render graphs to see the computation
# and how it is scheduled.
# If you run the tutorial in a Jupyter notebook, you can use the following commented lines
# to render SVG figures showing in notebook directly.
#
tedd.viz_dataflow_graph(s, dot_file_path = '/tmp/dfg.dot')
#tedd.viz_dataflow_graph(s, show_svg = True)
tedd.viz_dataflow_graph(s, dot_file_path = '/tmp/dfg.dot')
#tedd.viz_dataflow_graph(s, show_svg = True)
######################################################################
# .. image:: https://github.com/dmlc/web-data/raw/master/tvm/tutorial/tedd_dfg.png
# :align: center
# :scale: 100%
#
# The first one is a dataflow graph. Every node represents a stage with name and memory
# scope shown in the middle and inputs/outputs information on the sides.
# Edges show nodes' dependency.
# The first one is a dataflow graph. Every node represents a stage with name and memory
# scope shown in the middle and inputs/outputs information on the sides.
# Edges show nodes' dependency.
#
tedd.viz_schedule_tree(s, dot_file_path = '/tmp/scheduletree.dot')
#tedd.viz_schedule_tree(s, show_svg = True)
tedd.viz_schedule_tree(s, dot_file_path = '/tmp/scheduletree.dot')
#tedd.viz_schedule_tree(s, show_svg = True)
######################################################################
# We just rendered the schedule tree graph. You may notice an warning about ranges not
# We just rendered the schedule tree graph. You may notice an warning about ranges not
# available.
# The message also suggests to call normalize() to infer range information. We will
# skip inspecting the first schedule tree and encourage you to compare the graphs before
......@@ -103,62 +100,60 @@ tedd.viz_schedule_tree(s, dot_file_path = '/tmp/scheduletree.dot')
#
s = s.normalize()
tedd.viz_schedule_tree(s, dot_file_path = '/tmp/scheduletree2.dot')
#tedd.viz_schedule_tree(s, show_svg = True)
tedd.viz_schedule_tree(s, dot_file_path = '/tmp/scheduletree2.dot')
#tedd.viz_schedule_tree(s, show_svg = True)
######################################################################
# .. image:: https://github.com/dmlc/web-data/raw/master/tvm/tutorial/tedd_st.png
# :align: center
# :scale: 100%
#
# Now, let us take a close look at the second schedule tree. Every block under ROOT
# represents a
# stage. Stage name shows in the top row and compute shows in the bottom row.
# The middle rows are for IterVars, the higher the outer, the lower the inner.
# An IterVar row contains its index, name, type, and other optional information.
# Let's use the W.shared stage as an example. The top row tells
# its name, "W.shared", and memory scope, "Shared". Its compute is
# :code:`W(ax0, ax1, ax2, ax3)`.
# Its outer most loop IterVar is ax0.ax1.fused.ax2.fused.ax3.fused.outer,
# indexed with 0, of kDataPar, bound to threadIdx.y, and with range(min=0, ext=8).
# You can also tell
# IterVar type with the index box color, shown in the legend.
#
# If a stage doesn't compute_at any other stage, it has an edge directly to the
# ROOT node. Otherwise, it has an edge pointing to the IterVar it attaches to,
# such as W.shared attaches to rx.outer in the middle compute stage.
# Now, let us take a close look at the second schedule tree. Every block under ROOT
# represents a
# stage. Stage name shows in the top row and compute shows in the bottom row.
# The middle rows are for IterVars, the higher the outer, the lower the inner.
# An IterVar row contains its index, name, type, and other optional information.
# Let's use the W.shared stage as an example. The top row tells
# its name, "W.shared", and memory scope, "Shared". Its compute is
# :code:`W(ax0, ax1, ax2, ax3)`.
# Its outer most loop IterVar is ax0.ax1.fused.ax2.fused.ax3.fused.outer,
# indexed with 0, of kDataPar, bound to threadIdx.y, and with range(min=0, ext=8).
# You can also tell
# IterVar type with the index box color, shown in the legend.
#
# If a stage doesn't compute_at any other stage, it has an edge directly to the
# ROOT node. Otherwise, it has an edge pointing to the IterVar it attaches to,
# such as W.shared attaches to rx.outer in the middle compute stage.
#
######################################################################
# .. note::
#
# By definition, IterVars are internal nodes and computes are leaf nodes in
# a schedule tree. The edges among IterVars and compute within one stage are
######################################################################
# .. note::
#
# By definition, IterVars are internal nodes and computes are leaf nodes in
# a schedule tree. The edges among IterVars and compute within one stage are
# omitted, making every stage a block, for better readability.
#
tedd.viz_itervar_relationship_graph(s, dot_file_path = '/tmp/itervar.dot')
#tedd.viz_itervar_relationship_graph(s, show_svg = True)
tedd.viz_itervar_relationship_graph(s, dot_file_path = '/tmp/itervar.dot')
#tedd.viz_itervar_relationship_graph(s, show_svg = True)
######################################################################
# .. image:: https://github.com/dmlc/web-data/raw/master/tvm/tutorial/tedd_itervar_rel.png
# :align: center
# :scale: 100%
#
# The last one is an IterVar Relationship Graph. Every subgraph represents a
# stage and contains IterVar nodes and transformation nodes. For example,
# W.shared has three split nodes and three fuse nodes. The rest are IterVar
# nodes of the same format as the IterVar rows in Schedule Trees. Root
# IterVars are those not driven by any transformation node, such as ax0; leaf
# IterVars don't drive any transformation node and have non-negative indices,
# The last one is an IterVar Relationship Graph. Every subgraph represents a
# stage and contains IterVar nodes and transformation nodes. For example,
# W.shared has three split nodes and three fuse nodes. The rest are IterVar
# nodes of the same format as the IterVar rows in Schedule Trees. Root
# IterVars are those not driven by any transformation node, such as ax0; leaf
# IterVars don't drive any transformation node and have non-negative indices,
# such as ax0.ax1.fused.ax2.fused.ax3.fused.outer with index of 0.
#
######################################################################
# Summary
# -------
# This tutorial demonstrates the usage of TEDD. We use an example built
# with TOPI to show the schedules under the hood. You can also use
######################################################################
# Summary
# -------
# This tutorial demonstrates the usage of TEDD. We use an example built
# with TOPI to show the schedules under the hood. You can also use
# it before and after any schedule primitive to inspect its effect.
#
\ No newline at end of file
#
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