OpenXiangShan/GEM5
May 2025 – Jun 2025
2 Months active
Languages Used
C++ISAShellYAML
Technical Skills
CPU Architecture SimulationCPU architectureComputer ArchitectureISA DefinitionInstruction Set Architecture (ISA) DevelopmentLow-Level Programming
tqxu23
PROFILE
Tqxu23
Tianqi Xu contributed to the OpenXiangShan/GEM5 repository by expanding RISC-V vector processing capabilities and improving simulation reliability. Over two months, he refactored vector compression instructions, introduced a new Vslideup implementation, and stabilized vector widening and rounding logic, addressing both correctness and performance. He enhanced CI workflows to support RVV benchmarks and standardized test environments, using C++, Shell scripting, and YAML for development and configuration. Xu also resolved floating-point consistency issues and refined LSQ forwarding in the O3 CPU model, demonstrating depth in low-level programming and system architecture while ensuring robust, accurate simulation and validation across the codebase.
Overall Statistics
Feature vs Bugs
44%Features
Repository Contributions
12Total
Bugs
5
Commits
12
Features
4
Lines of code
8,530
Activity Months2
Your Network
43 people
Work History
June 2025
6 Commits • 1 Features
Jun 1, 2025June 2025: GEM5 OpenXiangShan delivered targeted improvements to numerical correctness, test infrastructure, and simulation reliability. Focused on RISC-V floating-point consistency, NEMU diff stability, and LSQ correctness, while expanding benchmarking coverage through CI enhancements for RVV and performance tests. These changes improve measurement fidelity, reduce false diffs, and streamline validation across the architecture.
6 Commits • 1 Features
Jun 1, 2025June 2025: GEM5 OpenXiangShan delivered targeted improvements to numerical correctness, test infrastructure, and simulation reliability. Focused on RISC-V floating-point consistency, NEMU diff stability, and LSQ correctness, while expanding benchmarking coverage through CI enhancements for RVV and performance tests. These changes improve measurement fidelity, reduce false diffs, and streamline validation across the architecture.
June 2025
May 2025
6 Commits • 3 Features
May 1, 2025May 2025 monthly summary for OpenXiangShan/GEM5 focused on vector ISA expansion, stability, and performance modeling. Delivered key features for RISC-V vector processing, stabilized critical paths, and improved correctness in vector rounding. Achievements include refactoring vector compression, expanding the Simple Vector ISA, introducing a new Vslideup implementation with decoder fixes, and resolving stability and rounding issues.
May 2025
6 Commits • 3 Features
May 1, 2025May 2025 monthly summary for OpenXiangShan/GEM5 focused on vector ISA expansion, stability, and performance modeling. Delivered key features for RISC-V vector processing, stabilized critical paths, and improved correctness in vector rounding. Achievements include refactoring vector compression, expanding the Simple Vector ISA, introducing a new Vslideup implementation with decoder fixes, and resolving stability and rounding issues.
Activity
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Quality Metrics
Correctness82.6%
Maintainability83.4%
Architecture76.6%
Performance75.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++ISAShellYAML
Technical Skills
CI/CDCPU ArchitectureCPU Architecture SimulationCPU SimulationCPU architectureComputer ArchitectureConfigurationEmbedded systemsISA DefinitionInstruction Set Architecture (ISA) DevelopmentLow-Level ProgrammingLow-level ProgrammingLow-level programmingMemory ManagementPerformance Testing
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