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Gemini Executive Synthesis

turboquant_plus compilation issues with CUDA on specific GPU architectures.

Technical Positioning
Compatibility and support for modern GPU hardware in AI/ML development.
SaaS Insight & Market Implications
This issue highlights a critical compatibility problem: turboquant_plus failing to compile with CUDA due to an 'Unsupported gpu architecture 'compute_120a'' error on an rtx 5060ti. This indicates a significant developer pain point in deploying AI/ML tools on modern hardware, particularly within WSL2 environments. The error suggests outdated CUDA toolkit configurations or a lack of support for newer GPU architectures. For SaaS providers in the AI/ML infrastructure space, ensuring broad and up-to-date hardware compatibility is paramount. Failure to support current GPU generations directly impedes adoption and creates significant friction for users attempting to leverage their compute resources. This necessitates continuous updates to build systems and CUDA dependencies.
Proprietary Technical Taxonomy
Unsupported gpu architecture 'compute_120a' WSL2 rtx 5060ti Ubuntu CUDA cmake nvcc fatal

Raw Developer Origin & Technical Request

Source Icon GitHub Issue Mar 31, 2026
Repo: TheTom/turboquant_plus
Unsupported gpu architecture 'compute_120a'

WSL2 - rtx 5060ti
Ubuntu.

# Windows (CUDA, use Developer Command Prompt or WSL2)
cmake -B build -DGGML_CUDA=ON
cmake --build build --config Release -j

[ 7%] Building CUDA object ggml/src/ggml-cuda/CMakeFiles/ggml-cuda.dir/conv-transpose-1d.cu.o
nvcc fatal : Unsupported gpu architecture 'compute_120a'
gmake[2]: *** [ggml/src/ggml-cuda/CMakeFiles/ggml-cuda.dir/build.make:227: ggml/src/ggml-cuda/CMakeFiles/ggml-cuda.dir/conv2d-transpose.cu.o] Error 1
nvcc fatal : Unsupported gpu architecture 'compute_120a'
[ 10%] Built target ggml-cpu
nvcc fatal : Unsupported gpu architecture 'compute_120a'
gmake[2]: *** [ggml/src/ggml-cuda/CMakeFiles/ggml-cuda.dir/build.make:257: ggml/src/ggml-cuda/CMakeFiles/ggml-cuda.dir/convert.cu.o] Error 1
gmake[2]: *** [ggml/src/ggml-cuda/CMakeFiles/ggml-cuda.dir/build.make:242: ggml/src/ggml-cuda/CMakeFiles/ggml-cuda.dir/conv2d.cu.o] Error 1
nvcc fatal : Unsupported gpu architecture 'compute_120a'
gmake[2]: *** [ggml/src/ggml-cuda/CMakeFiles/ggml-cuda.dir/build.make:212: ggml/src/ggml-cuda/CMakeFiles/ggml-cuda.dir/conv2d-dw.cu.o] Error 1
gmake[2]: *** [ggml/src/ggml-cuda/CMakeFiles/ggml-cuda.dir/build.make:287: ggml/src/ggml-cuda/CMakeFiles/ggml-cuda.dir/cpy.cu.o] Error 1
nvcc fatal : Unsupported gpu architecture 'compute_120a'
gmake[2]: *** [ggml/src/ggml-cuda/CMakeFiles/ggml-cuda.dir/build.make:272: ggml/src/ggml-cuda/CMakeFiles/ggml-cuda.dir/count-equal.cu.o] Error 1
nvcc fatal : Unsupported gpu architecture 'compute_120a'
gmake[2]: **...

Developer Debate & Comments

No active discussions extracted for this entry yet.

Adjacent Repository Pain Points

Other highly discussed features and pain points extracted from TheTom/turboquant_plus.

Extracted Positioning
turbo3 quantization for LLM KV cache compression
Achieving 4.6x compression with quality (perplexity, KL divergence, NIAH) comparable to q8_0 (within 2% PPL) and superior to q4_0, while maintaining high inference speed.
Top Replies
TheTom • Mar 25, 2026
## CRITICAL: Perplexity test reveals quality failure | Cache | PPL | vs f16 | |-------|-----|--------| | f16 | 6.121 | baseline | | q8_0 | 6.111 | -0.16% | | q4_0 | 6.142 | +0.34% | | **turbo3** | ...
TheTom • Mar 25, 2026
## Root causes found ### 1. V cache in rotated space Python verification: dequant output has cosine=0.02 with input (garbage). After inverse rotation: cosine=0.987 (correct). V cache values MUST be...
TheTom • Mar 25, 2026
## QUALITY FIXED ✅ Perplexity with inverse rotation restored in dequant: | Cache | PPL | vs q8_0 | |-------|-----|---------| | f16 | 6.121 | — | | q8_0 | 6.111 | baseline | | q4_0 | 6.142 | +0.5% ...
Extracted Positioning
`turbo3` decode performance for LLM inference on Apple Silicon (M1, M2 Pro, M5 Max), specifically addressing the 'decode cliff' at increasing context depths.
Achieving flat, high-performance `turbo3` decode ratios (0.90x+ of `q8_0`) across all context depths on Apple Silicon, minimizing performance degradation from memory access patterns.
Top Replies
TheTom • Mar 27, 2026
## M2 Pro Results: Bit-Arithmetic Dequant **Hardware:** Apple M2 Pro, Apple8 (1008), has_tensor=false, 32GB **Model:** Qwen2.5-7B-Instruct-Q4_K_M **Build:** experiment/m1-m2-decode-comparison (auto...
TheTom • Mar 27, 2026
## M2 Pro Results Update: Batched Extract IS a Win True baseline comparison (same branch chain, same build): | Depth | q8_0 | Main (const LUT) | Batched extract | Bit-arithmetic | |-------|------|-...
TheTom • Mar 27, 2026
## BREAKTHROUGH: Profiling isolation identifies exact bottleneck Added TURBO_PROFILE_MODE (0-4) to strip away dequant layers one at a time. ### M5 Max vs M2 Pro at 8K context decode: | Mode | What ...
Extracted Positioning
TurboQuant (`-ctk turbo3 -ctv turbo3`) integration with Vulkan devices for LLM inference.
Achieving broad hardware compatibility for TurboQuant, specifically extending to Vulkan-enabled AMD GPUs.
Extracted Positioning
TurboQuant (turbo3 and turbo4) performance optimization for LLM inference, specifically on Apple M1 hardware.
Achieving superior LLM inference speed (tokens/sec) through TurboQuant optimizations on Apple Silicon (M1).
Extracted Positioning
TurboQuant's quantization strategy, specifically regarding K/V norm disparity, attention quantization methods (MSE vs. Prod), and outlier detection (dynamic vs. fixed).
Advancing TurboQuant's quantization efficacy to achieve lower perplexity (PPL) and higher compression (lower average bit rates) through refined techniques.

Engagement Signals

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