search for: iv

Displaying 20 results from an estimated 2003 matches for "iv".

Did you mean: iov
2008 Dec 13
2
Need Help in converting php encryption decryption code to ruby on rails
...r [ leapinglangoor-/E1597aS9LQxFYw1CcD5bw@public.gmane.org ] #** Date....: 30th Apr 2005 #** version.: v1.00 #** #** Desc....: Below is MD5-based block cypher ( MDC-like ), #** which works in 128bit CFB mode. It is very useful to #** encrypt secret data before transfer it over the network. #** #** $iv_len - initialization vector''s length. #** 0 <= $iv_len <= 512 #** #************************************************/ # function get_rnd_iv( $iv_len ) { $iv = ''''; while ( $iv_len-- > 0 ) { $iv .= chr( mt_rand( ) & 0xff ); } ret...
2005 Jun 18
1
loess returns different standard errors for identical models (PR#7956)
...ion. Once too many models have been fit (~20 on my system), the computed standard error jumps to a different value. This is (superficially) due to a different residual sum of squares, not a different one.delta. No other aspect of the fit is affected, just the computed value of s (I've run extensive testing with all.equal() to make sure). Issuing a garbage collection before doing a loess fit appears to "solve" the problem, which makes me think this is not a problem in loessc.c or loessf.f. My point is that a few loess fits in one session should not cause the estimated standard error...
2008 Jul 14
2
Backslash in sub pattern?
Dear guRus, I am trying to replace "~" by "$\sim$" for TeX. However, I can't get the backslash to work. I would like to turn "DV~IV" into "DV$\sim$IV". sub("~","$\sim$","DV~IV") => "DV$sim$IV" sub("~","$\\sim$","DV~IV") => "DV$sim$IV" sub("~","$\\\sim$","DV~IV") => "DV$sim$IV" sub(&quo...
2007 Sep 27
3
Aggregate factor names
Hi all, A suggestion derived from discussions amongst a number of R users in my research group: set the default column names produced by aggregate () equal to the names of the objects in the list passed to the 'by' object. ex. it is annoying to type with( my.data ,aggregate( my.dv ,list( one.iv = one....
2007 Jun 29
1
extracting df and MS values from aov
Dear R users, I would like to extract df and Mean Sq values. I tried several things (e.g., str(model1), names(model1)) but I can't find a way to extract these values. I also tried to search using RSiteSearch. Any help will be appreciated. Thanks Taka, model1<-aov(dv~iv.1*iv.2*iv.3) summary(model1) Df Sum Sq Mean Sq iv.1 1 3.200 3.200 iv.2 9 62.200 6.911 iv.3 3 37.450 12.483 iv.1:iv.2 9 12.050 1.339 iv.1:iv.3 3 7.500 2.500 iv.2:iv.3 27 5...
2019 Jun 12
0
[PATCH v5 4/8] s390/airq: use DMA memory for adapter interrupts
...ure we allocate DMA memory for the notifier bit vectors by replacing the kmem_cache with a dma_cache and kalloc() with cio_dma_zalloc(). Signed-off-by: Halil Pasic <pasic at linux.ibm.com> Reviewed-by: Sebastian Ott <sebott at linux.ibm.com> --- arch/s390/include/asm/airq.h | 2 ++ drivers/s390/cio/airq.c | 37 ++++++++++++++++++++++-------------- drivers/s390/cio/cio.h | 2 ++ drivers/s390/cio/css.c | 1 + 4 files changed, 28 insertions(+), 14 deletions(-) diff --git a/arch/s390/include/asm/airq.h b/arch/s390/include/asm/airq.h index c10d2ee2dfda..01936fdfaddb...
2009 Aug 26
2
simple graph question: manipulating variable names
This is a simple problem that has stumped me: I'm trying to loop through a few dozen variable names in graphs. I've tried various approaches like this: attach(mydata) ivs <- c("oneiv", "anotheriv", "yetanotheriv") dvs <- c("onedv", "anotherdv", "yetanotherdv") for (iv in ivs) { for (dv in dvs) { graphname <- paste(iv, dv, ".png", sep = "") png(file=graphname, width=300, height=...
2015 Aug 20
2
loop unrolling introduces conditional branch
...xample, consider the following code *void foo( int n, int array_x[])* *{* * for (int i=0; i < n; i++)* * array_x[i] = i; * *}* Then I use this command "opt-3.5 try.bc -mem2reg -loops -loop-simplify -loop-rotate -lcssa -indvars -loop-unroll -unroll-count=3 -simplifycfg -S", it gives me this IR: *define void @_Z3fooiPi(i32 %n, i32* %array_x) #0 {* * %1 = icmp slt i32 0, %n* * br i1 %1, label %.lr.ph <http://lr.ph/>, label %._crit_edge* *.lr.ph <http://lr.ph/>: ; preds = %0, %7* * %indvars.iv = phi i64 [ %indvars.iv.ne...
2017 Sep 14
2
IVUsers pass is fragile. Is this okay? How can it be resolved?
Thank you for your thoughts, Hal. More information below... On Sep 13, 2017, at 5:43 PM, Hal Finkel <hfinkel at anl.gov<mailto:hfinkel at anl.gov>> wrote: On 09/13/2017 01:01 PM, Daniel Neilson via llvm-dev wrote: … snip For example, the following IR will produce different sets of IV users if either: i) The order of the PHI nodes in the %loop block are reordered; or ii) The uselistorder directive is uncommented --- target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:1" target triple = "x86_64-unknown-linux-gnu" define void @test(i64 %v1, i32 %v2,...
2019 May 23
0
[PATCH v2 4/8] s390/airq: use DMA memory for adapter interrupts
...ecause hypervisor needs to write these bits. Let us make sure we allocate DMA memory for the notifier bit vectors by replacing the kmem_cache with a dma_cache and kalloc() with cio_dma_zalloc(). Signed-off-by: Halil Pasic <pasic at linux.ibm.com> --- arch/s390/include/asm/airq.h | 2 ++ drivers/s390/cio/airq.c | 32 ++++++++++++++++++++------------ drivers/s390/cio/cio.h | 2 ++ drivers/s390/cio/css.c | 1 + 4 files changed, 25 insertions(+), 12 deletions(-) diff --git a/arch/s390/include/asm/airq.h b/arch/s390/include/asm/airq.h index c10d2ee2dfda..01936fdfaddb 100...
2019 Jun 06
0
[PATCH v4 4/8] s390/airq: use DMA memory for adapter interrupts
...ure we allocate DMA memory for the notifier bit vectors by replacing the kmem_cache with a dma_cache and kalloc() with cio_dma_zalloc(). Signed-off-by: Halil Pasic <pasic at linux.ibm.com> Reviewed-by: Sebastian Ott <sebott at linux.ibm.com> --- arch/s390/include/asm/airq.h | 2 ++ drivers/s390/cio/airq.c | 32 ++++++++++++++++++++------------ drivers/s390/cio/cio.h | 2 ++ drivers/s390/cio/css.c | 1 + 4 files changed, 25 insertions(+), 12 deletions(-) diff --git a/arch/s390/include/asm/airq.h b/arch/s390/include/asm/airq.h index c10d2ee2dfda..01936fdfaddb 100...
2019 May 29
0
[PATCH v3 4/8] s390/airq: use DMA memory for adapter interrupts
...placing the kmem_cache with a dma_cache and kalloc() with cio_dma_zalloc(). Signed-off-by: Halil Pasic <pasic at linux.ibm.com> Reviewed-by: Sebastian Ott <sebott at linux.ibm.com> Signed-off-by: Michael Mueller <mimu at linux.ibm.com> --- arch/s390/include/asm/airq.h | 2 ++ drivers/s390/cio/airq.c | 32 ++++++++++++++++++++------------ drivers/s390/cio/cio.h | 2 ++ drivers/s390/cio/css.c | 1 + 4 files changed, 25 insertions(+), 12 deletions(-) diff --git a/arch/s390/include/asm/airq.h b/arch/s390/include/asm/airq.h index c10d2ee2dfda..01936fdfaddb 100...
2019 Apr 26
0
[PATCH 07/10] s390/airq: use DMA memory for adapter interrupts
...virtualization guests have to use shared pages for airq notifier bit vectors, because hypervisor needs to write these bits. Let us make sure we allocate DMA memory for the notifier bit vectors. Signed-off-by: Halil Pasic <pasic at linux.ibm.com> --- arch/s390/include/asm/airq.h | 2 ++ drivers/s390/cio/airq.c | 18 ++++++++++++++---- 2 files changed, 16 insertions(+), 4 deletions(-) diff --git a/arch/s390/include/asm/airq.h b/arch/s390/include/asm/airq.h index fcf539efb32f..1492d4856049 100644 --- a/arch/s390/include/asm/airq.h +++ b/arch/s390/include/asm/airq.h @@ -11,6 +11,7 @...
2017 Sep 15
2
IVUsers pass is fragile. Is this okay? How can it be resolved?
...: Thank you for your thoughts, Hal. More information below... On Sep 13, 2017, at 5:43 PM, Hal Finkel <hfinkel at anl.gov<mailto:hfinkel at anl.gov>> wrote: On 09/13/2017 01:01 PM, Daniel Neilson via llvm-dev wrote: … snip For example, the following IR will produce different sets of IV users if either: i) The order of the PHI nodes in the %loop block are reordered; or ii) The uselistorder directive is uncommented --- target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:1" target triple = "x86_64-unknown-linux-gnu" define void @test(i64 %v1, i32 %v2,...
2006 Feb 18
1
Question about variable selection
Dear Lister, I have a question about variable selection for regression. if the IV is not significantly related to DV in the bivariate analysis, does it make sense to include this IV into the full model with multiple IVs? Thank you so much! [[alternative HTML version deleted]]
2014 Sep 02
2
[LLVMdev] Preserving NSW/NUW bits
David/All, Just a quick question about NSW/NUW bits, if you've got a second. I noticed you've been doing a little work on this as of late. I have a bit of code that looks like the following: %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 %2 = add i64 %indvars.iv.next, -1 %tmp = trunc i64 %2 to i32 %cmp = icmp slt i32 %tmp, %0 br i1 %cmp, label %for.body, label %for.end.loopexit I'm trying to fold the 2nd add instruction into the compare by changing the condition from from 'slt&...
2014 Sep 24
3
[LLVMdev] Loops Prevent Function Pointer Inlining?
...ically makes the IndVar pass change: ; <label>:4 ; preds = %6, %0 %i.0 = phi i32 [ 0, %0 ], [ %11, %6 ] %5 = icmp eq i32 %i.0, 0 br i1 %5, label %6, label %17 To: ; <label>:4 ; preds = %7, %0 %indvars.iv = phi i64 [ %indvars.iv.next, %7 ], [ 0, %0 ] %5 = trunc i64 %indvars.iv to i32 %6 = icmp eq i32 %5, 0 br i1 %6, label %7, label %15 Whereas before the patch it would be: ; <label>:4 ; preds = %7, %0 %indvars.iv = phi i64 [ %indvars.iv.next, %7...
2017 Sep 16
0
IVUsers pass is fragile. Is this okay? How can it be resolved?
...l Finkel <hfinkel at anl.gov >>>> <mailto:hfinkel at anl.gov>> wrote: >>>> On 09/13/2017 01:01 PM, Daniel Neilson via llvm-dev wrote: >>> >>> … snip >>> >>>>> For example, the following IR will produce different sets of IV >>>>> users if either: >>>>> i) The order of the PHI nodes in the %loop block are reordered; or >>>>> ii) The uselistorder directive is uncommented >>>>> >>>>> --- >>>>> target datalayout = "e-m:e-i64:64...
2015 Aug 22
3
loop unrolling introduces conditional branch
...**************************** API Generate IR End *********************************************************** Then I use "opt file.bc -mem2reg -loops -loop-simplify -loop-rotate -lcssa -indvars -loop-unroll -unroll-count=4 -irce -simplifycfg -S" to run both .bc files. The first .bc file give me this: ***************************** Clang Generate IR with LoopUnrolling Start********************************************** ; ModuleID = 'bc_from_clang.bc' target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" ; Fun...
2017 Sep 13
2
IVUsers pass is fragile. Is this okay? How can it be resolved?
Hi all, I’ve most recently been grappling with a difficult to reproduce bug. I’ve traced the source of the difficulty in reproduction to the IVUsers analysis pass that is used by Loop Strength Reduction. Specifically, the IVUsers pass’s output is very sensitive to both the use list ordering of the instructions that it is looking at and the ordering of the Phi nodes in the header block of the loop that it’s analyzing. I would like to resolv...