Displaying 15 results from an estimated 15 matches for "a72".
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2017 May 31
6
[RFC] Making -mcpu=generic the default for ARM armv7a and arm8a rather than -mcpu=cortex-a8 or -mcpu=cortex-a53
...ion speed?
I think the main reason to be hesitant to change the default CPU for ARM to -mcpu=generic is the potential impact on performance of generated code.
I've measured quite a wide selection of benchmarks with this change, on the following cores: Cortex-A9, Cortex-A53, Cortex-A57, Cortex-A72.
Impact on execution speed, for each core, when using -march=armv7a, after changing the default cpu from cortex-a8 to generic is as follows.
A positive numbers means speedup, a negative number means slow-down. These are the geomean results over 350 programs coming from benchmark suites such as the...
2017 Jun 01
3
[RFC] Making -mcpu=generic the default for ARM armv7a and arm8a rather than -mcpu=cortex-a8 or -mcpu=cortex-a53
...ion speed?
I think the main reason to be hesitant to change the default CPU for ARM to -mcpu=generic is the potential impact on performance of generated code.
I've measured quite a wide selection of benchmarks with this change, on the following cores: Cortex-A9, Cortex-A53, Cortex-A57, Cortex-A72.
Impact on execution speed, for each core, when using -march=armv7a, after changing the default cpu from cortex-a8 to generic is as follows.
A positive numbers means speedup, a negative number means slow-down. These are the geomean results over 350 programs coming from benchmark suites such as the...
2009 Jul 10
3
strange strsplit gsub problem 0 is this a bug or a string length limitation?
...backtestFormula<-SPX~A1+A2+A3+A4+A5+A6+A7+A8+A9+A10+A11+A12+A13+A14+A15+A16+A17+A18+A19+A20+A21+A22+A23+A24+A25+A26+A27+A28+A29+A30+A31+A32+A33+A34+A35+A36+A37+A38+A39+A40+A41+A42+A43+A44+A45+A46+A47+A48+A49+A50+A51+A52+A53+A54+A55+A56+A57+A58+A59+A60+A61+A62+A63+A64+A65+A66+A67+A68+A69+A70+A71+A72+A73+A74+A75+A76+A77+A78+A79+A80+A81+A82+A83+A84+A85+A86+A87+A88+A89+A90+A91+A92+A93+A94+A95+A96+A97+A98+A99+A100+A101+A102+A103+A104+A105+A106+A107+A108+A109+A110+A111+A112+A113
benchmarkName = as.character(backtestFormula)[2]
print(as.character(backtestFormula)[3])
print(benchmarkName)
assetsN...
2018 Jul 23
2
Requesting for help.
Hello All,
I need some help with respect to cross compiling for ARM.
While trying to cross compile for the ARM target, I am hitting some errors.
I need some help in this.
I use the following command to cross compile for ARM Cortex A72 (ARM v8-a),
64 bit architecture:
*cmake -v CC='clang' CXX='clang++'
-DCMAKE_C_COMPILER=../build_directory_llvm/bin/clang
-DCMAKE_CXX_COMPILER=../build_directory_llvm/bin/clang++
-DLLVM_TABLEGEN=../build_llvm_directory/bin/llvm-tblgen
-DCLANG_TABLEGEN=../build_llvm_directory/bin/cla...
2018 Jul 30
2
how to build NE10 Project using llvm compiler
Hello,
I’m using NXP layerscape Arch (A53/A72), and I want to use NE 10 Project
library , and llvm compiler 3.8.1.1
(https://projectne10.github.io/Ne10/) <https://projectne10.github.io/Ne10/>
When compiling the project file I get the following errors :
./NE10_abs.asm.s:59:9: error: unrecognized instruction mnemonic
vmov...
2018 Aug 14
3
[RFC] Delaying phi-to-select transformation until later in the pass pipeline
...expressions introduced by
instcombine.
Benchmark Results
=================
These are performance differences reported by LNT when running llvm-test-suite,
spec2000, and spec2006 at -O3 with and without the patch linked above (using
trunk llvm from a week or so ago).
AArch64 results on ARM Cortex-A72:
Performance Regressions - execution_time Change
SingleSource/Benchmarks/Shootout/Shootout-ary3 9.48%
MultiSource/Benchmarks/TSVC/Packing-flt/Packing-flt 3.79%
SingleSource/Benchmarks/CoyoteBench/huffbench...
2020 May 14
0
speexdsp doesn't compile on Ubuntu 20.04
Actually its the ccflags I am using with that particular distro.
-mcpu=cortex-a72 -mfloat-abi=hard -mfpu=neon-fp-armv8 -mneon-for-64bits
Which is optimised for pi4 isn’t liked.
Also without ccflag=””
configure: error: No 16 bit type found on this platform!
./configure --enable-neon --libdir=/usr/lib/aarch64-linux-gnu
I dropped down to ubuntu 18.04 and the same errors occur....
2019 May 20
3
[RFC] Intrinsics for Hardware Loops
...air. There's nothing connecting the
intrinsics to a given loop or any requirement that a set.loop.* call
needs to be paired with a loop.end call.
2. Low-overhead loops in the Arm backend
Disclaimer: The prototype is barebones and reuses parts of NEON and
I'm currently targeting the Cortex-A72 which does not support this
feature! opt and llc build and the provided test case doesn't cause a
crash...
The low-overhead branch extension can be combined with MVE to
generate vectorized loops in which the epilogue is executed within
the predicated vector body. The proposal is for this to be...
2020 Jan 23
3
How to find out the default CPU / Features String for a given triple?
...nt.
As an example, I have a test passing in the CI using the triple
"aarch64v8.1a-unknown-linux-unknown", and "" for both CPU name and
target features string. However when I pass the following target
specific features string, I get qemu crashing in the CI:
-a35,-a53,-a55,-a57,-a72,-a73,-a75,-a76,-aes,-aggressive-fma,-alternate-sextload-cvt-f32-pattern,+altnzcv,+am,-arith-bcc-fusion,-arith-cbz-fusion,-balance-fp-ops,+bti,-call-saved-x10,-call-saved-x11,-call-saved-x12,-call-saved-x13,-call-saved-x14,-call-saved-x15,-call-saved-x18,-call-saved-x8,-call-saved-x9,+ccdp,+ccidx,+c...
2018 Aug 15
2
[RFC] Delaying phi-to-select transformation until later in the pass pipeline
...=============
>
> These are performance differences reported by LNT when running
> llvm-test-suite,
> spec2000, and spec2006 at -O3 with and without the patch linked
> above (using
> trunk llvm from a week or so ago).
>
> AArch64 results on ARM Cortex-A72:
>
> Performance Regressions - execution_time Change
> SingleSource/Benchmarks/Shootout/Shootout-ary3 9.48%
> MultiSource/Benchmarks/TSVC/Packing-flt/Packing-flt
> 3.79%
> SingleSource/Benchmarks/CoyoteBench/huffbench ...
2005 Apr 09
1
dovecot and evolution
...Mime-Version: 1.0 (Apple Message framework v481)
From: Michael Maskalans <mindless at cif.rochester.edu>
To: <problem at cif.rochester.edu>
Content-Transfer-Encoding: 7bit
In-Reply-To: <003501c1e6f0$d4859bb0$ef441842 at yi0b4plk53mjqz>
Message-Id: <71B00250-539A-11D6-A72E-00039303ECDC at cif.rochester.edu>
X-Mailer: Apple Mail (2.481)
Content-Length: 301
Status: RO
X-UID: 326402
)
==========================
It looks like dovecot really isn't sending any information for message
#1, starting right off at message #2. The headers it gives for
mes...
2018 Aug 17
2
[RFC] Delaying phi-to-select transformation until later in the pass pipeline
...t;>>
>>> These are performance differences reported by LNT when running llvm-test-suite,
>>> spec2000, and spec2006 at -O3 with and without the patch linked above (using
>>> trunk llvm from a week or so ago).
>>>
>>> AArch64 results on ARM Cortex-A72:
>>>
>>> Performance Regressions - execution_time Change
>>> SingleSource/Benchmarks/Shootout/Shootout-ary3 9.48%
>>> MultiSource/Benchmarks/TSVC/Packing-flt/Packing-flt 3.79%
>>> S...
2002 Oct 21
3
Problem with Samba on Solaris 2.6
Hi All
I downloaded the binary package of Samba 2.2.2 on Friday from one of the
Samba mirror sites, I think Belgium, and installed it on a Sun E450
running Solaris 2.6.
Today everything has fallen flat on its face. Unfortunately I am on
holiday this week so not able to deal with the problem directly, but via
telephone calls. Apparently what is happening is that smbd is gobbling
up all the
2013 Apr 22
7
Multiple lon lat points in the map with ggplot2
Hello R users,
For the last few days I am struggling with the following task:
my data.frame:
A1 A2 A3 B1 B2
B3
58.81 53.292 54.501 13.013 17.39 19.407 56.02 56.251 54.033 20.099 13.15
10.411 55.376 53.099 57.625 13.396 21.031 13.22 58.584 53.194 54.218
13.038 16.854 19.289 55.7 55.921 53.847 19.942 13.153 9.828 55.093 52.934
2023 Dec 02
33
[Bug 3639] New: server thread aborts during client login after receiving SSH2_MSG_KEXINIT
...4
On-line CPU(s) list: 0-3
Thread(s) per core: 1
Core(s) per socket: 4
Socket(s): 1
Vendor ID: ARM
Model: 3
Model name: Cortex-A72
Stepping: r0p3
CPU max MHz: 1500.0000
CPU min MHz: 600.0000
BogoMIPS: 108.00
L1d cache: 128 KiB
L1i cache: 192 KiB
L2 cache:...