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Mamy Ratsimbazafy πŸ¦‡πŸ”Š Profile
Mamy Ratsimbazafy πŸ¦‡πŸ”Š

@m_ratsim

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Engineer @lita_xyz zkVM | Cryptography | Scaling Ethereum | ex Chief Scientist @taikoxyz, Ethereum Core Dev @ethnimbus

Paris
Joined April 2014
Don't wanna be here? Send us removal request.
@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
1 year
Releasing Constantine v0.1.0, the fastest backend for Ethereum cryptography. BLS signatures, EVM crypto-precompiles, KZG polynomial commitments for blobs (EIP-4844). All accelerated, with multithreading support. And the fastest MSM for elliptic curves.
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
2 months
Microsoft bloque l'email de la Cour PΓ©nal Internationale: Faut arrΓͺter la dΓ©pendance Γ  Google / Microsoft.
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
2 months
All I want in the world is for archive node and RPC providers to answer eth_getProof(. ) forever and after.
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
2 months
RT @0xLita: Ventali’s Twitter (@ventali_ ) and Telegram (@ventali08) accounts have been compromised. Please do not engage with any messages….
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
2 months
Spicy take. @nim_lang will be the best language for code generating high performance GPU kernels for AMD, Metal. Nvidia, OpenCL, Vulkan. And those macros β˜„οΈπŸ”₯ Only ~1000 LOC for a compile-time macro-based Cuda codegenerator to compile Nim to Cuda.
@0xLita
Lita
2 months
Nim + NVRTC = 5.3x Faster Than ICICLE for GPU-Accelerated Poseidon2 Merkle Trees . A Deep Dive: .
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
2 months
Whoops holidays and back with ZK on fire following @VitalikButerin post on replacing EVM exec with Risc-V. On proof generation side, the discussion so far has been missing the biggest cost contributors to ZKVM, ISA calling conventions and addressing mode.
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
3 months
@vllm_project @ollama Tried a different quantization, same model 13s between enqueueing and completing the task (w4a16 vs gptq-4bit). Not sure how to further narrow down the rootcause.
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
3 months
I can reliably DOS @vllm_project with a small query for 5 min (and sometimes is 10+), trying to narrow down rootcause but same doesn't happen in @ollama for instance. How do you even start debugging DOS in LLM ops btw? Is there a standard responsible disclosure process?
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
3 months
We're overcooking. Join us at
@0xLita
Lita
3 months
Introducing the Lita Layer 4: An Interplanetary-Scale Super World Computer.
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
3 months
We're cooking.
@0xLita
Lita
3 months
Introducing Lita Studios 🧡
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
4 months
πŸŽ‰πŸŽŠ.
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
4 months
Ethereum is the most ecological blockchain due to the number of trees it's planting:
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
4 months
Proof of Drip @0xLita X @0xPolygon. Unveiling the ultimate ZK CTF game, . Cat Training Frenzy 🐈. It's now.
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
4 months
RT @gregthegreek: The scaling Ethereum wars rn are unbelievably left curve with a massive micro lens. I literally devoted my life to help….
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
5 months
RT @idocryptography: Presenting a new improved Khatam result showing BaseFold secure within one-and-a-half Johnson bound! (.
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
5 months
Nvidia delaying GPU orders by 15min, and "coming soon" and then next you see "out of stock". 🀷.
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
5 months
Next step to 1.0 is auditing Constantine, scoping conversation happens here: Sponsors and auditors welcome!.
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
5 months
Also according to Constantine is the fastest EIP-4844 blob backend.
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
5 months
Highlights:.- ARM assembler in Nim macros, 15% to 32% perf improvement.- Keccak.- EVM precompiles: RIPEMD160, POINT_EVALUTION, ECRECOVER.- Prototype Nvidia multi-scalar-mul (serial only) implemented in pure LLVM.- Prototype JIT compilation to AMD GPUs.
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
5 months
It's been 7 months since the first release of Constantine. Here is v0.2.0 "Coat of Arms", featuring 70 commits, 354 files changed and 48000 lines of code modified:.
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@m_ratsim
Mamy Ratsimbazafy πŸ¦‡πŸ”Š
6 months
So what should we name of archive nodes that can do arbitrary block eth_getProof()?. We can't do pre-EIP4844 eth_getProof in reth :/.
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