Toshihiro Konda
Senior Engineer (Compiler Developer) at ArchiTek
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolToshihiro Konda is a senior compiler engineer and performance analyst with eight years focused on high-performance compilers and DNN codegen, currently leading a small team at ArchiTek building an aIPE compiler (LLVM/clang/lld) and bespoke RISC-V backends. He has a track record of rapidly implementing complex function units and ISA improvements solo—sometimes delivering primitives in days—and has repeatedly optimized VLIW, long-word codegen, and auto-parallelization for AI chips. Earlier roles span low-level compiler backends (PEZY, DeepInsights), TensorFlow XLA work, and hands-on performance tuning at Fujitsu, giving him deep expertise in ISA design, super-wide SIMD, and applied performance analysis. He describes himself more as a performance analyst than a general programmer, which explains his strength in logical root-cause analysis that ties microarchitecture to real-world performance. Notably, he invented the UXSIMD algorithm and has contributed pragmatic innovations like novel rerolling and parallel pipeline techniques that appear across specialized AI compilers. Based in Chiyoda, Japan, he combines research-grade systems experience with rapid, production-focused implementation.
8 years of coding experience
7 years of employment as a software developer
学士, Hardware architecture, 学士, Hardware architecture at 東京大学江戸川学園取手高等学校
Github Skills (18)
opencl8
javascript7
cpu7
machine-learning7
gpu7
metal7
libfdk-aac7
raspberry6
deep-learning6
gpu-programming6
vulkan6
tvm6
compiler5
spirv5
raspberry-pi4
Programming languages (2)
Github contributions (5)
LEA0317/llvm9-test
Nov 2019 - May 2022
test optimization for X86
Contributions:7 PRs, 10 pushes, 1 branch in 2 years 6 months
x86optimization
LEA0317/LLVM-VideoCore4
Jun 2019 - May 2022
LLVM toy compiler for VideoCore4 (Raspberry Pi VPU)
Contributions:144 commits, 152 pushes, 9 comments in 3 years
raspberry-pivpulibfdk-aacraspberrycompiler
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