PyMTL: A Python-Based Framework for Hardware Modeling

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1 : A Python-Based Framework for Hardware Modeling Shunning Jiang and Shuang Chen Computer Systems Laboratory School of Electrical and Computer Engineering Cornell University

2 : A Python-Based Framework for Hardware Modeling Computer Architecture Development Methodologies Applications Algorithms Compilers Instruction Set Architecture Microarchitecture VLSI Transistors Functional-Level Modeling Behavior Cycle-Level Modeling Behavior Cycle-Approximate Analytical Area, Energy, Timing Register-Transfer-Level Modeling Behavior Cycle-Accurate Timing Gate-Level Area, Energy, Timing Cornell University Shunning Jiang and Shuang Chen 2 / 8

3 : A Python-Based Framework for Hardware Modeling Computer Architecture Development Methodologies Computer Architecture Methodology Gap FL, CL, RTL modeling use very different languages, patterns, tools, and methodologies Approch: Modeling Towards Layout Unified Python-based framework for FL, CL, and RTL modeling Functional-Level Modeling Algorithm/ISA Development MATLAB/Python, C++ ISA Sim Cycle-Level Modeling Design-Space Exploration C++ Simulation Framework SW-Focused Object-Oriented gem5, SESC, McPAT Register-Transfer-Level Modeling Prototyping & AET Validation, VHDL Languages HW-Focused Concurrent Structural EDA flow Cornell University Shunning Jiang and Shuang Chen 2 / 8

4 : A Python-Based Framework for Hardware Modeling Why Python? Python is well regarded as a highly productive language with lightweight, pseudocode-like syntax Python supports modern language features to enable rapid, agile development (dynamic typing, reflection, metaprogramming) Python has a large and active developer and support community Python includes extensive standard and third-party libraries Python enables embedded domain-specific languages Python facilitates engaging application-level researchers Python includes built-in support for integrating with C/C++ Python performance is improving with advanced JIT compilation Cornell University Shunning Jiang and Shuang Chen 3 / 8

5 What(is(?( : A Python-Based Framework for Hardware Modeling What is? ' A'Python'DSEL'for'concurrentFstructural'hardware'modeling' A'Python'API'for'analyzing'models'described'in'the''DSEL' A'Python'tool'for'simulaGng''FL,'CL,'and'RTL'models' A'Python'tool'for'translaGng''RTL'models'into'' A'Python'tesGng'framework'for'model'validaGon' TesGng'Framework' DSEL' API' SimulaGon' ' TranslaGon' ' :'A'Unified'Framework'for'Ver8cally'Integrated' Computer'Architecture'Research' 12'/'39' Cornell University Shunning Jiang and Shuang Chen 4 / 8

6 : A Python-Based Framework for Hardware Modeling What(Does((Enable?( What Does Enable? Incremental'refinement'from'algorithm'to'accelerator'implementaGon' Automated'tesGng'and'integraGon'of'Fgenerated'' Test' Harness' Test' Harness' Test' Harness' Test' Harness' FL' CL' RTL' ' RTL' :'A'Unified'Framework'for'Ver8cally'Integrated' Computer'Architecture'Research' 14'/'39' Cornell University Shunning Jiang and Shuang Chen 5 / 8

7 : A Python-Based Framework for Hardware Modeling What(Does((Enable?( What Does Enable? ' Incremental'refinement'from'algorithm'to'accelerator'implementaGon' Automated'tesGng'and'integraGon'of'Fgenerated'' MulGFlevel'coFsimulaGon'of'FL,'CL,'and'RTL'models' FL' CL' RTL' :'A'Unified'Framework'for'Ver8cally'Integrated' Computer'Architecture'Research' 15'/'39' Cornell University Shunning Jiang and Shuang Chen 5 / 8

8 : A Python-Based Framework for Hardware Modeling What(Does((Enable?( What Does Enable? ' Incremental'refinement'from'algorithm'to'accelerator'implementaGon' Automated'tesGng'and'integraGon'of'Fgenerated'' MulGFlevel'coFsimulaGon'of'FL,'CL,'and'RTL'models' ConstrucGon'of'highlyFparameterized'RTL'chip'generators' ' RTL' :'A'Unified'Framework'for'Ver8cally'Integrated' Computer'Architecture'Research' 16'/'39' Cornell University Shunning Jiang and Shuang Chen 5 / 8

9 Specification : A Python-Based Framework for Hardware Modeling The flow s Output Test Harness FL Model RTL Model Elaboration Simulation Translation Traces & VCD System Model Wrapper Import Cornell University Shunning Jiang and Shuang Chen 6 / 8

10 : A Python-Based Framework for Hardware Modeling Using RTL for ECE 4750 Specification s Output Test Harness FL Model Simulation Traces & VCD Elaboration RTL Model Translation System Model Wrapper Import Cornell University Shunning Jiang and Shuang Chen 7 / 8

11 : A Python-Based Framework for Hardware Modeling Using RTL for ECE 4750 Specification s Output Test Harness FL Model Simulation Traces & VCD Elaboration RTL Model Translation System Model Wrapper Import Cornell University Shunning Jiang and Shuang Chen 8 / 8

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