* [fx] add some comment and docstrings.
* [fx] add dataflow analysis for an autograd graph.
* add intepretation for graph analysis.
* [fx] before doing save_tensor_hooks.
* [fx] provide an accurate estimation of memory except for GPT-2.
* [fx] provide an accurate estimation of memory except for GPT-2.
* [fx] provide an accurate estimation of memory except for GPT-2.
* [fx] a very accurate version on GPT-2.
* [fx] refactor code.
* [fx] remove redundant inplace=True.
* [fx] refactor code.
* [fx] refactor code.
* [fx] refactor code.
* [fx] dive into backward memory.
* [fx] fix variable names in ckpt_solvers and unskip tests.
* [fx] commit my changes.
* [fx] restore skips.
* [fx] restore skips.
* [fx] chaange stage into phase.
* [fx] chaange stage into phase.
* [fx] chaange stage into phase.
* [fx] compute memory stat and flop count for MetaInfoProp.
* [fx] modify node attribute.
* [fx] modify ckpt_chen.
* [fx] fix compatibility.
* [fx] fix import error.
* [fx] skip test for MetaInfoProp.
* [fx] skip test for MetaInfoProp.
* [fx] skip test for MetaInfoProp.
* [fx] skip test for MetaInfoProp.
* [fx] skip if torch 1.11.0.
* [fx] recover MetaInfoProp support for PyTorch 1.11.
* [fx] provide a stable but not accurate enough version of profiler.
* [fx] provide a stable but not accurate enough version of profiler.
* [fx] fix compatibility in tests.
* [fx] fix compatibility in tests.
* [fx] fix compatibility in tests.
* [fx] fix compatibility in tests.
* [fx] fix compatibility in tests.
* [fx] fix compatibility in tests.
* [fx] fix compatibility in tests.
* [fx] fix compatibility in tests.
* [fx] fix compatibility in tests.
* [fx] fix compatibility in tests.
* [fx] fix import error.
* [fx] modify the calculation of node_size in MetaInfoProp for activation checkpointing usages
* [fx] modify the calculation of node_size in MetaInfoProp for activation checkpointing usages
* [fx] modify the calculation of node_size in MetaInfoProp for activation checkpointing usages
* [fx] merge development into main (#1)
* [fx] activation checkpointing using Chen strategies.
* [fx] add test for ckpt_solver_chen
* [fx] add vanilla activation checkpoint search with test on resnet and densenet
* [fx] add a namespace code for solver_chen.
* [fx] fix the false interpretation of algorithm 3 in https://arxiv.org/abs/1604.06174.
* [fx] fix lowercase naming conventions.
* [fx] simplify test for ckpt.
* [fx] add rules to linearize computation graphs for searching. (#2)
* [fx] modify the calculation of node_size in MetaInfoProp for activation checkpointing usages
* [fx] modify the calculation of node_size in MetaInfoProp for activation checkpointing usages
* [fx] modify the calculation of node_size in MetaInfoProp for activation checkpointing usages
* [fx] merge development into main (#1)
* [fx] activation checkpointing using Chen strategies.
* [fx] add test for ckpt_solver_chen
* [fx] add vanilla activation checkpoint search with test on resnet and densenet
* [fx] add a namespace code for solver_chen.
* [fx] fix the false interpretation of algorithm 3 in https://arxiv.org/abs/1604.06174.
* [fx] fix lowercase naming conventions.
* [fx] simplify test for ckpt.
* [fx] fix test and algorithm bugs in activation checkpointing.
* [fx] polish ckpt_test.
* [fx] add rules to linearize computation graphs for searching.
* [fx] remove chen_sqrt for sake of simplicity
* [fx] remove chen_sqrt for sake of simplicity
* [fx] remove chen_sqrt for sake of simplicity
* [fx] remove chen_sqrt for sake of simplicity
* [fx] fix inconsistencies.
* [fx] fix MetaInfoProp.
* [fx] fix MetaInfoProp.
* [fx] consider MetaInfoProp for inplace operands.
* [fx] consider MetaInfoProp for inplace operands.
* [fx] consider MetaInfoProp for inplace operands.
* [fx] consider MetaInfoProp for inplace operands.
* [fx] consider MetaInfoProp for inplace operands.
* [fx] add profiler for fx nodes.
* [fx] add profiler for fx nodes.
* [fx] add profiler for fx nodes.
* [fx] add profiler for fx nodes.
* [fx] add profiler for fx nodes.
* [fx] add profiler for fx nodes.
* [fx] add profiler for fx nodes.
* [fx] fix error in tests.
* [fx] unfix bug.
* [fx] unfix bug.
* [fx] modify the calculation of node_size in MetaInfoProp for activation checkpointing usages
* [fx] modify the calculation of node_size in MetaInfoProp for activation checkpointing usages
* [fx] modify the calculation of node_size in MetaInfoProp for activation checkpointing usages
* [fx] merge development into main (#1)
* [fx] activation checkpointing using Chen strategies.
* [fx] add test for ckpt_solver_chen
* [fx] add vanilla activation checkpoint search with test on resnet and densenet
* [fx] add a namespace code for solver_chen.
* [fx] fix the false interpretation of algorithm 3 in https://arxiv.org/abs/1604.06174.
* [fx] fix lowercase naming conventions.
* [fx] simplify test for ckpt.
* [fx] fix test and algorithm bugs in activation checkpointing.
* mend
[fx] fix test and algorithm bugs in activation checkpointing.
* mend
[fx] fix test and algorithm bugs in activation checkpointing.
* mend
[fx] fix test and algorithm bugs in activation checkpointing.
* mend
[fx] fix test and algorithm bugs in activation checkpointing.
* [fx] polish ckpt_test.
* [fx] polish ckpt_test.
* [fx] polish ckpt_test.
* [fx] modify the calculation of node_size in MetaInfoProp for activation checkpointing usages
* [fx] modify the calculation of node_size in MetaInfoProp for activation checkpointing usages
* [fx] modify the calculation of node_size in MetaInfoProp for activation checkpointing usages
* [fx] activation checkpointing using Chen strategies.
* [fx] add test for ckpt_solver_chen
* mend
* [fx] add vanilla activation checkpoint search with test on resnet and densenet
* [fx] add vanilla activation checkpoint search with test on resnet and densenet
* [fx] add a namespace code for solver_chen.
* [fx] fix the false interpretation of algorithm 3 in https://arxiv.org/abs/1604.06174.
* [fx] fix lowercase naming conventions.
* [fx] activation checkpointing using Chen strategies.
* [fx] add test for ckpt_solver_chen
* [fx] add vanilla activation checkpoint search with test on resnet and densenet
* [fx] add vanilla activation checkpoint search with test on resnet and densenet
* [fx] add a namespace code for solver_chen.
Super Daniel