Displaying 9 results from an estimated 9 matches for "narrowest".
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narrowed
2016 Jun 15
8
[RFC] Allow loop vectorizer to choose vector widths that generate illegal types
...tor registers. That is, if the widest scalar type in the
scalar loop is i64, and the platform's largest vector register is 256-bit
wide, we will not consider a VF above 4.
We have a command line option (-mllvm -vectorizer-maximize-bandwidth), that
will choose VFs for consideration based on the narrowest scalar type
instead of the widest one, but I don't believe it has been widely tested.
If anyone has had an opportunity to play around with it, I'd love to hear
about the results.
What I'd like to do is:
Step 1: Make -vectorizer-maximize-bandwidth the default. This should
improve the pe...
2008 Jul 16
0
Confidence bands for model estimates using ns() spline basis
...ing its interactions with other
covariates.
My question is about confidence bands. So far, I tried to calculate these in
a straightforward manner using the coefficients' estimated covariance
matrix. [ e.g., Var (a+b) = Var(a) + Var(b) + 2Cov(a,b) ]
Common sense suggests that the bands will be narrowest in the middle of the
time period studied and widening towards the edges. However, the model fit
seems to default to zero time-effect errors at the start of the period,
gradually widening as time progresses - which is not supported by the data
(in my case the data are almost evenly distributed acros...
2016 Jun 16
2
[RFC] Allow loop vectorizer to choose vector widths that generate illegal types
...tor registers. That is, if the widest scalar type in the scalar loop is i64, and the platform's largest vector register is 256-bit wide, we will not consider a VF above 4.
We have a command line option (-mllvm -vectorizer-maximize-bandwidth), that will choose VFs for consideration based on the narrowest scalar type instead of the widest one, but I don't believe it has been widely tested. If anyone has had an opportunity to play around with it, I'd love to hear about the results.
What I'd like to do is:
Step 1: Make -vectorizer-maximize-bandwidth the default. This should improve the pe...
2016 Oct 16
1
compile c++ code in an R package without -g
Hello Dirk,
Thank you very much for your reply.
The main reason I want to remove the debug info is that when I use R
CMD check on my package, it gives the following info
* checking installed package size ... NOTE
installed size is 223.6Mb
sub-directories of 1Mb or more:
libs 223.1Mb
CRAN requires an R package to pass all checks and fix all complaints
including NOTEs.
It seems R's
2016 Jun 16
2
[RFC] Allow loop vectorizer to choose vector widths that generate illegal types
...tor registers. That is, if the widest scalar type in the scalar loop is i64, and the platform's largest vector register is 256-bit wide, we will not consider a VF above 4.
We have a command line option (-mllvm -vectorizer-maximize-bandwidth), that will choose VFs for consideration based on the narrowest scalar type instead of the widest one, but I don't believe it has been widely tested. If anyone has had an opportunity to play around with it, I'd love to hear about the results.
What I'd like to do is:
Step 1: Make -vectorizer-maximize-bandwidth the default. This should improve the pe...
2002 Jan 14
6
RC2 better than RC3 ???
Since 1.0rc2 was released i have found that ogg@64k
sounds almost like mp3@128k (in 95% of the 3000 files i encoded...)
I tested 1.0rc3 and 64k bitrate (quality=0.0) gives
less good quality than before.
And bad : it takes longer to encode !
(1.7x vs. 2.0x on a P2/500MHz)
Effectively 64k ogg files encoded with rc3 are smaller than
files encoded with rc2.
I hear people debatting on how satisfied
2016 Oct 27
1
RFC: Absolute or "fixed address" symbols as immediate operands
On Wed, Oct 26, 2016 at 9:48 PM, Chris Lattner <clattner at apple.com> wrote:
> On Oct 26, 2016, at 1:34 AM, Peter Collingbourne <peter at pcc.me.uk> wrote:
>
> On Tue, Oct 25, 2016 at 10:48 PM, Chris Lattner <clattner at apple.com>
> wrote:
>
>> Responding to both of your emails in one, sorry for the delay:
>>
>> On Oct 25, 2016, at 11:20 AM,
2019 Sep 25
4
Questions after playing around with KaleidoscopeJIT (With source files)
Hello LLVM people,
after finishing Chapter 1 and 2 of the KaleidoscopeJIT tutorial, I started to play around with the code and now, I have even more questions than before. I hope that the people reading this could help me with it, to improve my understanding about the LLVM and the JIT.
I have also the source code and binaries (Windows) available but because I don't know how the mailing list
2016 Oct 27
2
RFC: Absolute or "fixed address" symbols as immediate operands
On Oct 26, 2016, at 1:34 AM, Peter Collingbourne <peter at pcc.me.uk> wrote:
> On Tue, Oct 25, 2016 at 10:48 PM, Chris Lattner <clattner at apple.com <mailto:clattner at apple.com>> wrote:
> Responding to both of your emails in one, sorry for the delay:
>
>> On Oct 25, 2016, at 11:20 AM, Peter Collingbourne <peter at pcc.me.uk <mailto:peter at