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Zoltán Lehóczky (Lombiq Technologies), … John Gustafson7

8/16/19

Can't post to this group? Let me know!

I now changed the visibility of this group in the "group directory" to be public as well (

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Can't post to this group? Let me know!

I now changed the visibility of this group in the "group directory" to be public as well (

8/16/19

Posits Foundation

Aug 17

CoNGA '26 paper deadline extended

to September 14 2026. Please view the CfP for more info... https://posithub.org/conga/2026/

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CoNGA '26 paper deadline extended

to September 14 2026. Please view the CfP for more info... https://posithub.org/conga/2026/

Aug 17

Cluster TeamSCC, John Gustafson3

Aug 16

New content on posithub

to September 14. Please consider submitting if you are doing work in this space. https://posithub.org

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New content on posithub

to September 14. Please consider submitting if you are doing work in this space. https://posithub.org

Aug 16

May 21

Photonic computing, Residual computation (R = A ⊖ E) is the primary primitive and must be preserved through mapping to hardware. and "Every Bit Counts" Twenty Questions and A-to-D Converters bounded ENOB (Effective Number of Bits)

Aloha. How does photonic computing, MZi, and, posits and ADCs play very well together? EO (Earth

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Photonic computing, Residual computation (R = A ⊖ E) is the primary primitive and must be preserved through mapping to hardware. and "Every Bit Counts" Twenty Questions and A-to-D Converters bounded ENOB (Effective Number of Bits)

Aloha. How does photonic computing, MZi, and, posits and ADCs play very well together? EO (Earth

May 21

Apr 22

Tapers LNS and Polars

Hi All, built a demo to compare non standard number systems at low bitwidth (4bit per channel) for

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Tapers LNS and Polars

Hi All, built a demo to compare non standard number systems at low bitwidth (4bit per channel) for

Apr 22

Mar 22

b-posit: Bounded posit support in fast-posit library

Hi! I'm happy to say that the fast-posit library (https://github.com/andrepd/posit-rust) now

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b-posit: Bounded posit support in fast-posit library

Hi! I'm happy to say that the fast-posit library (https://github.com/andrepd/posit-rust) now

Mar 22

Mar 20

unum calculator

https://stillwater-sc.github.io/universal/tutorials/ucalc-repl/ Here is a universal number calculator

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unum calculator

https://stillwater-sc.github.io/universal/tutorials/ucalc-repl/ Here is a universal number calculator

Mar 20

theo, Theodore Omtzigt2

Mar 14

Generalized Quire RFC

For those not familiar with the history of the quire: https://stillwater-sc.github.io/universal/exact

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Generalized Quire RFC

For those not familiar with the history of the quire: https://stillwater-sc.github.io/universal/exact

Mar 14

Feb 18

Some benchmarks from a library im working on

Alu only for now ══════════════════════════════════════════════════════════════════════╗ ║ Encode/

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Some benchmarks from a library im working on

Alu only for now ══════════════════════════════════════════════════════════════════════╗ ║ Encode/

Feb 18

Feb 16

Anyone interested in the $149 group rate for duct/dryer cleaning?

Two people have already joined If you're interested, please send me your availability, home

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Anyone interested in the $149 group rate for duct/dryer cleaning?

Two people have already joined If you're interested, please send me your availability, home

Feb 16

Aravind Voggu, … John Gustafson7

Jan 17

New library for Posit on CUDA

That's a great idea, I'll add support for es=3 On Friday, January 16, 2026 at 8:18:06 PM UTC+

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New library for Posit on CUDA

That's a great idea, I'll add support for es=3 On Friday, January 16, 2026 at 8:18:06 PM UTC+

Jan 17

11/15/25

FYI -- addresses the irreversible information loss problem in traditional arithmetic systems -- Google Scholar Alerts Fwd: 1 new citation to articles by Michael P. Frank

Aloha Mahalo, Art [PDF] Reversible Arithmetic System: A Mathematical Framework Based on Computational

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FYI -- addresses the irreversible information loss problem in traditional arithmetic systems -- Google Scholar Alerts Fwd: 1 new citation to articles by Michael P. Frank

Aloha Mahalo, Art [PDF] Reversible Arithmetic System: A Mathematical Framework Based on Computational

11/15/25

André, … Theodore Omtzigt16

11/8/25

fast-posit: A correct, clean, and fast software implementation of posits (the fastest?)

For precisions up to 32, the Minefield Method works great, and I hear the Github from Rutgers for

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fast-posit: A correct, clean, and fast software implementation of posits (the fastest?)

For precisions up to 32, the Minefield Method works great, and I hear the Github from Rutgers for

11/8/25

10/10/25

Fwd: Call for papers, ARITH 2026

All, I was amused to see that ARITH has finally mentioned the word "posits" in their Call

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Fwd: Call for papers, ARITH 2026

All, I was amused to see that ARITH has finally mentioned the word "posits" in their Call

10/10/25

Theodore Omtzigt, … John Gustafson4

10/9/25

Initially, I had implemented SATURATE, for example, fixed-point number systems for DSP tend to use

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Initially, I had implemented SATURATE, for example, fixed-point number systems for DSP tend to use

10/9/25

Cluster TeamSCC

9/11/25

CoNGA paper deadline is September 14

Folks, If you are still waiting to submit a paper to CoNGA 2025, the paper deadline is this weekend.

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CoNGA paper deadline is September 14

Folks, If you are still waiting to submit a paper to CoNGA 2025, the paper deadline is this weekend.

9/11/25

Zoltán Lehóczky

6/2/25

Re: Please add Sean Feeney

Invited Sean. Note, though, that anyone can joint this group on their own too. On 2025. 06. 02. 0:42,

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Re: Please add Sean Feeney

Invited Sean. Note, though, that anyone can joint this group on their own too. On 2025. 06. 02. 0:42,

6/2/25

John Gustafson, … Oscar Smith4

6/1/25

CoNGA 2025 Call for Papers

> If you can accept 1e–30 to 1e30 instead, going to eS = 4 does that. I think that's totally

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CoNGA 2025 Call for Papers

> If you can accept 1e–30 to 1e30 instead, going to eS = 4 does that. I think that's totally

6/1/25

CrashAndSideburns, … John Gustafson9

6/1/25

Understanding Bankers' Rounding for Posits

Morgan, If you use Dedekind cuts to define the reals, but restrict the rational numbers to those with

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Understanding Bankers' Rounding for Posits

Morgan, If you use Dedekind cuts to define the reals, but restrict the rational numbers to those with

6/1/25

9/19/24

Aloha. Please update this https://en.wikipedia.org/wiki/Bit_slicing to add posit tm. Mahalo.

https://en.wikipedia.org/wiki/Bit_slicing -- Earth ICT, SPC 8 Athlone WAY, Menlo Park, CA. 94025 Ph:

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Aloha. Please update this https://en.wikipedia.org/wiki/Bit_slicing to add posit tm. Mahalo.

https://en.wikipedia.org/wiki/Bit_slicing -- Earth ICT, SPC 8 Athlone WAY, Menlo Park, CA. 94025 Ph:

9/19/24

Arthur Scott, John Gustafson2

9/8/24

Question. Is there posit (tm) feature complete open-source and sustainable modern Fortran implementation with support for modern accelerators

Aloha Art, Calligo Technologies has an accelerator board with posit arithmetic native to its 8 RISC-V

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Question. Is there posit (tm) feature complete open-source and sustainable modern Fortran implementation with support for modern accelerators

Aloha Art, Calligo Technologies has an accelerator board with posit arithmetic native to its 8 RISC-V

9/8/24

A Avinash, … Himeshi De Silva9

7/29/24

Need help figuring out a way to convert IEEE 754 representation to Posit

On Thu, Jul 25, 2024 at 8:16 PM Troy Benjegerdes <dah...@gmail.com> wrote: So that I make sure

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Need help figuring out a way to convert IEEE 754 representation to Posit

On Thu, Jul 25, 2024 at 8:16 PM Troy Benjegerdes <dah...@gmail.com> wrote: So that I make sure

7/29/24

2/7/24

Password changed

You have a new password! Your password for signing in to open-source-silicon.dev was recently changed

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Password changed

You have a new password! Your password for signing in to open-source-silicon.dev was recently changed

2/7/24

2/7/24

Slack account sign in from a new device

Slack account sign in from a new device 📱 Android in USA Signed in to open-source-silicon.dev (https:

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Slack account sign in from a new device

Slack account sign in from a new device 📱 Android in USA Signed in to open-source-silicon.dev (https:

2/7/24

2/7/24

[Slack] Single sign-on disabled

Single sign-on disabled Your Workspace Administrator at open-source-silicon.dev has disabled Single

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[Slack] Single sign-on disabled

Single sign-on disabled Your Workspace Administrator at open-source-silicon.dev has disabled Single

2/7/24

Andrew Marlow, Theodore Omtzigt2

12/1/23

dragonbox and posits

Hi Andrew: In the Universal library we have Dragon4 and Grisu3 implementations, and thank you for

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dragonbox and posits

Hi Andrew: In the Universal library we have Dragon4 and Grisu3 implementations, and thank you for

12/1/23

Nathan Waivio, John Gustafson4

11/28/23

Updates to my Haskell Posit Library

Hi Dr. Gustafson, Currently the rewrite rules are a compiler option that is disabled by default. It

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Updates to my Haskell Posit Library

Hi Dr. Gustafson, Currently the rewrite rules are a compiler option that is disabled by default. It

11/28/23

Lakshmi Kanth Nallagatla

11/26/23

Request for joining in group

Hi all, I am interested in learning unum accelerators. Please join me in the group . Best regards,

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Request for joining in group

Hi all, I am interested in learning unum accelerators. Please join me in the group . Best regards,

11/26/23

jim.bra...@ieee.org, … MitchAlsup14

11/8/23

2013 paper on Right-sizing precision

On Wednesday, November 8, 2023 at 4:23:24 PM UTC-6 johngustafson wrote: I like your idea of [NaR, NaR

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2013 paper on Right-sizing precision

On Wednesday, November 8, 2023 at 4:23:24 PM UTC-6 johngustafson wrote: I like your idea of [NaR, NaR

11/8/23

Lakshmi Kanth Nallagatla

10/26/23

posit arithmetic

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posit arithmetic

10/26/23

Angelo Bulfone, … John Gustafson12

10/24/23

Rounding to integer types

resisting urge to request pi function over gamma function On Mon, Oct 23, 2023 at 10:57 AM John

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Rounding to integer types

resisting urge to request pi function over gamma function On Mon, Oct 23, 2023 at 10:57 AM John

10/24/23

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