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Topics - tle

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1
Operating Systems and Porting / [NEWS] Fedora 42
« on: April 15, 2025, 08:26:28 am »
Fedora 42 ships the nearly-final GCC 15 compiler along with Golang 1.24, the LLVM 20 toolchain, PHP 8.4, Ruby 3.4, and a ton of other software upgrades. If GNOME isn't your thing, KDE Plasma 6.3 is available along with the Xfce 4.20, LXQt 2.1 and Cosmic Alpha 6 desktops. The new kernel 6.14.2 play nicely with ppc64le. I have not encountered any major issue.

GNOME 48 is actually quite good now. The only thing does not work for me is the new Loupe Image Viewer which is unable to view any image.

2
Applications and Porting / [GAMES] Raptor Call of the Shadows
« on: April 03, 2025, 07:20:34 pm »
One of the best DOS games in the 90s. The port itself is open sourced by the original author.

Video: https://youtu.be/5ONEkjAw-1o

3
Operating Systems and Porting / [NEWS] Linux 6.14
« on: March 26, 2025, 08:12:51 am »
It is out! More details could be found at https://www.phoronix.com/news/Linux-6.14

There are no mentioning of any PowerPC-related changes unfortunately.

4
Operating Systems and Porting / [NEWS] Fedora 42 Beta
« on: March 18, 2025, 07:11:25 pm »
The final release would be likely in the mid April, now is the time to have a go and report all issues

For more information https://lists.fedoraproject.org/archives/list/announce@lists.fedoraproject.org/thread/WE4CEHE6KD77NV6RGFX2SE2FYLP7UGUE/

5
Operating Systems and Porting / [DEV] Any interactive REPL tooling for OpenPOWER assembly
« on: March 15, 2025, 11:12:34 pm »
I am learning PowerPC assembly by playing around with assembly inlined in C code. Wondering is there any interactive tool that shows the full list of registers and other useful information for assembly language? Many thanks in advance

6
Applications and Porting / [GAMES] Command and Conquer Red Alert open sourced!
« on: February 28, 2025, 03:05:23 am »
Source: https://www.phoronix.com/news/EA-Open-Source-CnC-Red-Alert

Yes the best game of my childhood. I think the community will port the game to SDL eventually, let's hope then it could be run on ppc64le

7
Operating Systems and Porting / [NEWS] Linux 6.13 is out!
« on: January 19, 2025, 09:12:17 pm »
Things are just getting better. The 6.13 has a bit of changes, however most of them are not really related to RaptorCS or OpenPOWER hardware. Having said that it's welcoming to see changes related to Intel Xe3 (which is not yet working with non-x86 platform). I am hopeful in a year or two we might be able to run Intel Battlemages-GPU cards.

Source: https://www.phoronix.com/news/Linux-6.13-Released

8
Operating Systems and Porting / [NEWS] AlmaLinux 10 - RHEL10...but free as chip
« on: December 12, 2024, 01:40:03 am »
More details could be found at
https://almalinux.org/blog/2024-10-22-introducing-almalinux-os-kitten/

It's worthy to point out that this distribution support PPC64LE.

9
Operating Systems and Porting / [NEWS] FreeBSD 14.2
« on: December 03, 2024, 03:33:38 am »
More details could be found at https://www.freebsd.org/releases/14.2R/announce/

I am unsure how many of us are actually using FreeBSD but hey there are great usecases out there that FreeBSD shine brighter than Linux for example the ZFS

10
Operating Systems and Porting / [NEWS] Fedora 41 is out!
« on: October 31, 2024, 11:09:34 pm »
"Fedora 41 features a number of package updates like going to LLVM 19, LXQt 2.0, Python 3.13, DNF5, RPM 4.20, PyTorch 2.4, AMD ROCm 6.2, GIMP 3.0 (near final form), replacing Redis with Valkey, and many others. Fedora 41 also features interesting features like self-encrypting drives support within the Anaconda installer, Intel IPU6 camera support for newer Intel Core laptops, Wayland-only GNOME Workstation media, NVIDIA driver support on Secure Boot systems, the new fedora-repoquery tool, a new alternative spin for Fedora Miracle, and more."

More details on changeset could be found at https://fedoraproject.org/wiki/Releases/41/ChangeSet

It's yet another great version from Fedora. Everything runs as expected for PPC64LE arch

11
Applications and Porting / [DEV] Binsider is a nice analysis tool ELF binaries
« on: September 30, 2024, 08:54:17 pm »
This tool is quite useful IMHO for developers who want to peek inside the ELV binaries to find bugs or simply to reverse the application logic.

ref: https://github.com/orhun/binsider

12
Operating Systems and Porting / [NEWS] Linux 6.11
« on: September 16, 2024, 01:35:01 am »
It's officially out. Not much news related to PowerPC unfortunately.

However preliminary support RDNA4-based AMDGPU is in.

Btw, RDNA2-based cards like 6800 continues to work.

Fedora 41 will ship with 6.11 (or 6.12).

Full changelog: https://www.phoronix.com/review/linux-611-features

13
Applications and Porting / [DEV] Add ppc64le support for generator-rs - need guidance
« on: August 06, 2024, 09:48:31 pm »
Hi folks

One of main blocker of getting Cosmic Desktop compiled on ppc64le is the generator-rs package. I've lodged a ticket upstream in https://github.com/Xudong-Huang/generator-rs/issues/60

However I do not think the author would get to it. So I am thinking to give it a go myself. Can anyone give me some examples of context-switching registers of POWER ISA?

Many thanks

14
Operating Systems and Porting / [NEWS] Linux 6.10
« on: July 17, 2024, 09:59:54 am »
It is officially out!

ref: https://www.phoronix.com/news/Linux-6.10-Released

There are lots of exciting features and bug fixes. As far as I am concerned, the amdgpu driver (up to RDNA 3 graphic cards) continues to work.

I hope the 6.11 would support Intel Xe GPU on PPC64LE

15
General CPU Discussion / HPLinpack benchmarking
« on: June 13, 2024, 01:34:56 am »
Use https://github.com/geerlingguy/top500-benchmark

Code: [Select]
$ lscpu
Architecture:             ppc64le
  Byte Order:             Little Endian
CPU(s):                   32
  On-line CPU(s) list:    0-31
Model name:               POWER9, altivec supported
  Model:                  2.3 (pvr 004e 1203)
  Thread(s) per core:     4
  Core(s) per socket:     8
  Socket(s):              1
  Frequency boost:        enabled
  CPU(s) scaling MHz:     100%
  CPU max MHz:            3800.0000
  CPU min MHz:            2166.0000
Caches (sum of all):     
  L1d:                    256 KiB (8 instances)
  L1i:                    256 KiB (8 instances)
  L2:                     4 MiB (8 instances)
  L3:                     80 MiB (8 instances)
NUMA:                     
  NUMA node(s):           1
  NUMA node0 CPU(s):      0-31
Vulnerabilities:         
  Gather data sampling:   Not affected
  Itlb multihit:          Not affected
  L1tf:                   Mitigation; RFI Flush, L1D private per thread
  Mds:                    Not affected
  Meltdown:               Mitigation; RFI Flush, L1D private per thread
  Mmio stale data:        Not affected
  Reg file data sampling: Not affected
  Retbleed:               Not affected
  Spec rstack overflow:   Not affected
  Spec store bypass:      Mitigation; Kernel entry/exit barrier (eieio)
  Spectre v1:             Mitigation; __user pointer sanitization, ori31 speculation barrier enabled
  Spectre v2:             Mitigation; Software count cache flush (hardware accelerated), Software link stack flush
  Srbds:                  Not affected
  Tsx async abort:        Not affected

Code: [Select]
$ ansible-playbook main.yml --tags "setup,benchmark" --ask-become-pass
  mpirun_output.stdout: |-
    ================================================================================
    HPLinpack 2.3  --  High-Performance Linpack benchmark  --   December 2, 2018
    Written by A. Petitet and R. Clint Whaley,  Innovative Computing Laboratory, UTK
    Modified by Piotr Luszczek, Innovative Computing Laboratory, UTK
    Modified by Julien Langou, University of Colorado Denver
    ================================================================================
 
    An explanation of the input/output parameters follows:
    T/V    : Wall time / encoded variant.
    N      : The order of the coefficient matrix A.
    NB     : The partitioning blocking factor.
    P      : The number of process rows.
    Q      : The number of process columns.
    Time   : Time in seconds to solve the linear system.
    Gflops : Rate of execution for solving the linear system.
 
    The following parameter values will be used:
 
    N      :   70717
    NB     :     256
    PMAP   : Row-major process mapping
    P      :       1
    Q      :      32
    PFACT  :   Right
    NBMIN  :       4
    NDIV   :       2
    RFACT  :   Crout
    BCAST  :  1ringM
    DEPTH  :       1
    SWAP   : Mix (threshold = 64)
    L1     : transposed form
    U      : transposed form
    EQUIL  : yes
    ALIGN  : 8 double precision words
 
    --------------------------------------------------------------------------------
 
    - The matrix A is randomly generated for each test.
    - The following scaled residual check will be computed:
          ||Ax-b||_oo / ( eps * ( || x ||_oo * || A ||_oo + || b ||_oo ) * N )
    - The relative machine precision (eps) is taken to be               1.110223e-16
    - Computational tests pass if scaled residuals are less than                16.0
 
    ================================================================================
    T/V                N    NB     P     Q               Time                 Gflops
    --------------------------------------------------------------------------------
    WR11C2R4       70717   256     1    32            1650.43             1.4286e+02
    HPL_pdgesv() start time Thu Jun 13 15:57:05 2024
 
    HPL_pdgesv() end time   Thu Jun 13 16:24:36 2024
 
    --------------------------------------------------------------------------------
    ||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.41238455e-03 ...... PASSED
    ================================================================================
 
    Finished      1 tests with the following results:
                  1 tests completed and passed residual checks,
                  0 tests completed and failed residual checks,
                  0 tests skipped because of illegal input values.
    --------------------------------------------------------------------------------
 
    End of Tests.
    ================================================================================

PLAY RECAP *********************************************************************************************************************************************************************************************************************************************************************
127.0.0.1                  : ok=29   changed=10   unreachable=0    failed=0    skipped=7    rescued=0    ignored=0   

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