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Zve should be a strict subset of V, use new option to relax VLEN
5 messages
Hi, The way 18.1 and 18.2 currently read in the V spec is a bit confusing. It defines Zve as "Vector extensions for Embedded Processors", and V as a "Vector Extension for Application Processor". 1) Pr
Hi, The way 18.1 and 18.2 currently read in the V spec is a bit confusing. It defines Zve as "Vector extensions for Embedded Processors", and V as a "Vector Extension for Application Processor". 1) Pr
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By
Guy Lemieux
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Vector TG Meeting Minutes 2021/07/09
Date: 2021/07/09 Task Group: Vector Extension Chair: Krste Asanovic Vice-Chair: Roger Espasa Number of Attendees: ~12 Current issues on github: https://github.com/riscv/riscv-v-spec We had a short mee
Date: 2021/07/09 Task Group: Vector Extension Chair: Krste Asanovic Vice-Chair: Roger Espasa Number of Attendees: ~12 Current issues on github: https://github.com/riscv/riscv-v-spec We had a short mee
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Krste Asanovic
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Vector TG Meeting tomorrow
5 messages
We’ll meet tomorrow to see if there are any remaining concerns before going Into public review, Krste
We’ll meet tomorrow to see if there are any remaining concerns before going Into public review, Krste
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By
Krste Asanovic
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Vector TG Meeting tomorrow - imprecise trap description/use.
For discussion: The text states: reporting an error and terminating execution is the appropriate response. Issue #598 to be resolved after v1.0 and issue #364 which is tagged with "resolve for v1.0" a
For discussion: The text states: reporting an error and terminating execution is the appropriate response. Issue #598 to be resolved after v1.0 and issue #364 which is tagged with "resolve for v1.0" a
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By
David Horner
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Vector TG meeting minutes 2021/07/02
2 messages
Date: 2021/07/02 Task Group: Vector Extension Chair: Krste Asanovic Vice-Chair: Roger Espasa Number of Attendees: ~12 Current issues on github: https://github.com/riscv/riscv-v-spec We discussed sever
Date: 2021/07/02 Task Group: Vector Extension Chair: Krste Asanovic Vice-Chair: Roger Espasa Number of Attendees: ~12 Current issues on github: https://github.com/riscv/riscv-v-spec We discussed sever
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By
Krste Asanovic
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Vector TG meeting tomorrow usual time slot
Based on feedback, we'll have a vector TG meeting tomorrow to address concerns. Details in usual place in Google calendar, Krste
Based on feedback, we'll have a vector TG meeting tomorrow to address concerns. Details in usual place in Google calendar, Krste
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By
Krste Asanovic
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Smaller embedded version of the Vector extension
34 messages
Hi everyone, Are there any plans for a cut-down configuration of the vector extension suitable for embedded cores? It seems that the 32x128-bit register file is suitable for application class cores bu
Hi everyone, Are there any plans for a cut-down configuration of the vector extension suitable for embedded cores? It seems that the 32x128-bit register file is suitable for application class cores bu
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By
Tariq Kurd
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No vector TG meeting tomorrow - preparing to start public review
3 messages
There have been no substantial objections raised on the v1.0-rc1 draft, so I will cancel the meeting tomorrow. There are some minor suggestions and edits (thank you!), and I will incorporate these int
There have been no substantial objections raised on the v1.0-rc1 draft, so I will cancel the meeting tomorrow. There are some minor suggestions and edits (thank you!), and I will incorporate these int
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By
Krste Asanovic
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Potential Vector Task Group Meeting and v1.0-rc1 review reminder by June 25
Unless there are significant issues raised by the group on the v1.0-rc1 spec, the intent is to go into public review on June 25th, so please make sure to give any feedback before then. There are a few
Unless there are significant issues raised by the group on the v1.0-rc1 spec, the intent is to go into public review on June 25th, so please make sure to give any feedback before then. There are a few
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By
Krste Asanovic
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回复:Re: 回复:[RISC-V] [tech-vector-ext] RISC-V Vector Spec version 1.0-rc1-20210608
6 messages
Dear Craig and Roger, Thanks a lot for providing me goodsolution. I have tried them, they are all good solutions of upsample application. But, when it comes to other applications, such as zip/u
Dear Craig and Roger, Thanks a lot for providing me goodsolution. I have tried them, they are all good solutions of upsample application. But, when it comes to other applications, such as zip/u
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By
Linjie Yu
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Background for Policy/Workflow revisions on Github close concern.
Andrew Waterman called Thursday and we discussed many issues including challenges with Issues in Github. We determined that both were unaware of some relevant aspects [neither of us intentionally blin
Andrew Waterman called Thursday and we discussed many issues including challenges with Issues in Github. We determined that both were unaware of some relevant aspects [neither of us intentionally blin
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By
David Horner
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回复:[RISC-V] [tech-vector-ext] RISC-V Vector Spec version 1.0-rc1-20210608
2 messages
Hi, all I encountered a difficulty of applying "vrgather" instruction recently. The details are shown blow: The date from source should be duplicated as pair in a upsample application. Eg: src = [0, 1
Hi, all I encountered a difficulty of applying "vrgather" instruction recently. The details are shown blow: The date from source should be duplicated as pair in a upsample application. Eg: src = [0, 1
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By
Linjie Yu
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RISC-V Vector Spec version 1.0-rc1-20210608
I've just tagged the first release candidate for v1.0 of the vector spec in github. PDF attached below. I've included the TG agreed updates and handled almost all of the outstanding issues for v1.0. T
I've just tagged the first release candidate for v1.0 of the vector spec in github. PDF attached below. I've included the TG agreed updates and handled almost all of the outstanding issues for v1.0. T
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By
Krste Asanovic
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Smaller embedded version of the Vector extension
see github issue #550 Krste
see github issue #550 Krste
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By
Krste Asanovic
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Smaller embedded version of the Vector extension
This is a good question. So if the RVM22 profile requires VLEN=32, ELEN=64, LMUL=8 then the vector registers will have the same amount of state as ARM MVE. Tariq
This is a good question. So if the RVM22 profile requires VLEN=32, ELEN=64, LMUL=8 then the vector registers will have the same amount of state as ARM MVE. Tariq
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By
Tariq Kurd
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答复: [RISC-V] [tech-vector-ext] Smaller embedded version of the Vector extension
Hi, Krste: The RISC-V V TG have the plan to support a lowcost vector extension in RVMxx profile? Best Regards Shaofei 2021.6.3 -----邮件原件----- 发件人: krste@... [mailto:krste@...] 发送时间: 2021年6月3日 2:13 收件人
Hi, Krste: The RISC-V V TG have the plan to support a lowcost vector extension in RVMxx profile? Best Regards Shaofei 2021.6.3 -----邮件原件----- 发件人: krste@... [mailto:krste@...] 发送时间: 2021年6月3日 2:13 收件人
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By
Shaofei (B)
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Check mask all ones / all zeros
9 messages
Hi all, I could not find any instruction that immediately computes this. Apologies if I missed the obvious here. Two options came to mind: vpopc.m and check whether the result is 0 (all zeros) or VLMA
Hi all, I could not find any instruction that immediately computes this. Apologies if I missed the obvious here. Two options came to mind: vpopc.m and check whether the result is 0 (all zeros) or VLMA
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By
Roger Ferrer Ibanez
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LLVM with RVV intrinsic support
2 messages
Hi, We would like to announce that the RISC-V V-extension v0.10 has been implemented in LLVM and the work has been committed upstream. Barcelona Supercomputing Center (BSC), Codeplay Software, and SiF
Hi, We would like to announce that the RISC-V V-extension v0.10 has been implemented in LLVM and the work has been committed upstream. Barcelona Supercomputing Center (BSC), Codeplay Software, and SiF
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By
Kai Wang
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vector intrinsics for both RV32/RV64
3 messages
Hi, I’m starting a project where we want to use vector intrinsics and generate both 64b and 32b code (for RV64 and RV32). It looks line the best way to do this right now is with GCC, where we were abl
Hi, I’m starting a project where we want to use vector intrinsics and generate both 64b and 32b code (for RV64 and RV32). It looks line the best way to do this right now is with GCC, where we were abl
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By
Guy Lemieux
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FYI: ARM vs. RISC-V vector extension conmparison
3 messages
https://erik-engheim.medium.com/arm-vs-risc-v-vector-extensions-992f201f402f Rather superficial - all about how hard it is for a person to program in assembly language, rather than how a compiler can
https://erik-engheim.medium.com/arm-vs-risc-v-vector-extensions-992f201f402f Rather superficial - all about how hard it is for a person to program in assembly language, rather than how a compiler can
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By
Allen Baum
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