similar to: How to pick out several infinite values when calculating means?

Time stamps are correct and my system time is correct. I am now tried to use Sys.setFileTime() to update time stamps as proposed. This does not help. The windows and debian builds give different reports on the time stamp issue. https://win-builder.r-project.org/incoming_pretest/eurostat_3.2.8_20180920_122655/Windows/00check.log

Hi Lei, Le 31/05/2012 03:44, Lei Mou a écrit : > Problem solved by returning the second result of the ATOMIC_LOAD_OR node... You got the chain instead of the loaded value. IMHO, a better solution would have been to add a Pat<> rule to match truncstores and expand them into target store/load/and/or. Pat : <(truncstore16 GPR:$val, MEM:$mem), (store MEM:$mem, (or

On Sat, Jun 14, 2014 at 1:29 AM, Ming Lei <ming.lei at canonical.com> wrote: > Firstly this patch supports more than one virtual queues for virtio-blk > device. > > Secondly this patch maps the virtual queue to blk-mq's hardware queue. > > With this approach, both scalability and performance problem can be improved. > > Signed-off-by: Ming Lei <ming.lei at

On Sat, Jun 14, 2014 at 1:29 AM, Ming Lei <ming.lei at canonical.com> wrote: > Firstly this patch supports more than one virtual queues for virtio-blk > device. > > Secondly this patch maps the virtual queue to blk-mq's hardware queue. > > With this approach, both scalability and performance problem can be improved. > > Signed-off-by: Ming Lei <ming.lei at

On 11/24/2010 06:55 PM, Owen Anderson wrote: > On Nov 23, 2010, at 9:22 AM, Andrew Clinton wrote: > > >> Most of my programs contain loops that the LoopDeletion pass is unable >> to remove. It appears that the following code in LoopDeletion.cpp:152 >> is the culprit: >> >> ScalarEvolution& SE = getAnalysis<ScalarEvolution>(); >>

On Nov 23, 2010, at 9:22 AM, Andrew Clinton wrote: > Most of my programs contain loops that the LoopDeletion pass is unable > to remove. It appears that the following code in LoopDeletion.cpp:152 > is the culprit: > > ScalarEvolution& SE = getAnalysis<ScalarEvolution>(); > const SCEV *S = SE.getMaxBackedgeTakenCount(L); > if

Dear R-helpers, I need to show a linear fit through a subset of the data within each combination of levels of two factors. So I prepared an xyplot with different panels for each level of one of the factors, and different symbols within each panel for the levels of the second factor. My problem is selecting the subset of each combination through which the line should be fit for subsequent

On Tue, Feb 18, 2020 at 8:35 PM Halil Pasic <pasic at linux.ibm.com> wrote: > > On Tue, 18 Feb 2020 10:21:18 +0800 > Ming Lei <tom.leiming at gmail.com> wrote: > > > On Thu, Feb 13, 2020 at 8:38 PM Halil Pasic <pasic at linux.ibm.com> wrote: > > > > > > Since nobody else is going to restart our hw_queue for us, the > > >

Problem solved by returning the second result of the ATOMIC_LOAD_OR node... On Wed, May 30, 2012 at 9:38 PM, Lei Mou <lei.mou.uu at gmail.com> wrote: > Hi, > > Our target only has native support for i32 and f32 types. For data > types smaller than these, I have to custom lowering truncating store > using two atomic load instruction (which have the same semantics as >

On Mon, Apr 16, 2012 at 3:48 AM, Lei Mou <lei.mou.uu at gmail.com> wrote: > Hi all, > > I'm learning the PTX backend and confused by the following problem. In the > constructor of PTXFrameLowering, StackAlignment and LocalAreaOffset are > assigned 2 and -2, respectively. Since PTX has neither stack frame nor > stack pointer, why StackAlignment and LocalAreaOffset are

On Wed, Jul 15, 2015 at 11:00 PM, Chandler Carruth <chandlerc at google.com> wrote: > FWIW, I'm very much in favor of having a firm and clear answer to these > questions. > > I also agree that it is an absolute requirement that LLVM have *some* > mechanism for supporting both languages with defined behavior for infinite > loops and a language requirement that all loops

Hi Jens and Rusty, On Thu, Jun 26, 2014 at 8:04 PM, Ming Lei <ming.lei at canonical.com> wrote: > On Thu, Jun 26, 2014 at 5:41 PM, Ming Lei <ming.lei at canonical.com> wrote: >> Hi, >> >> These patches try to support multi virtual queues(multi-vq) in one >> virtio-blk device, and maps each virtual queue(vq) to blk-mq's >> hardware queue. >>

Hi Jens and Rusty, On Thu, Jun 26, 2014 at 8:04 PM, Ming Lei <ming.lei at canonical.com> wrote: > On Thu, Jun 26, 2014 at 5:41 PM, Ming Lei <ming.lei at canonical.com> wrote: >> Hi, >> >> These patches try to support multi virtual queues(multi-vq) in one >> virtio-blk device, and maps each virtual queue(vq) to blk-mq's >> hardware queue. >>

On 11/25/2010 12:59 PM, Andrew Clinton wrote: > On 11/24/2010 06:55 PM, Owen Anderson wrote: >> On Nov 23, 2010, at 9:22 AM, Andrew Clinton wrote: >> >> >>> Most of my programs contain loops that the LoopDeletion pass is unable >>> to remove. It appears that the following code in LoopDeletion.cpp:152 >>> is the culprit: >>> >>>

Most of my programs contain loops that the LoopDeletion pass is unable to remove. It appears that the following code in LoopDeletion.cpp:152 is the culprit: ScalarEvolution& SE = getAnalysis<ScalarEvolution>(); const SCEV *S = SE.getMaxBackedgeTakenCount(L); if (isa<SCEVCouldNotCompute>(S)) return Changed; So, LoopDeletion thinks my loops might be infinite so it

Sure. Use legal ARM mode syntax for the instruction. Specifically, there is no offset immediate for the ARM mode LDREX instruction. It's illegal syntax to supply one, even if it's zero. -Jim On Aug 16, 2012, at 2:36 PM, Lei Zhao <leizhao833 at gmail.com> wrote: > It works. But a follow-up question: why do I have to compile it to thumb mode in order to pass the compilation? Is

Firstly, it isn't necessary to hold lock of vblk->vq_lock when notifying hypervisor about queued I/O. Secondly, virtqueue_notify() will cause world switch and it may take long time on some hypervisors(such as, qemu-arm), so it isn't good to hold the lock and block other vCPUs. On arm64 quad core VM(qemu-kvm), the patch can increase I/O performance a lot with VIRTIO_RING_F_EVENT_IDX

Firstly, it isn't necessary to hold lock of vblk->vq_lock when notifying hypervisor about queued I/O. Secondly, virtqueue_notify() will cause world switch and it may take long time on some hypervisors(such as, qemu-arm), so it isn't good to hold the lock and block other vCPUs. On arm64 quad core VM(qemu-kvm), the patch can increase I/O performance a lot with VIRTIO_RING_F_EVENT_IDX

It works. But a follow-up question: why do I have to compile it to thumb mode in order to pass the compilation? Is there a way to make it compile to regular arm mode? Thanks. - Lei On Aug 16, 2012, at 4:00 PM, Eli Friedman wrote: > On Thu, Aug 16, 2012 at 12:55 PM, Lei Zhao <leizhao833 at gmail.com> wrote: >> Hi Everybody, >> >> I recently did a cross-compiling

Greetings. I somehow had the impression that an infinite number, as obtained by dividing by zero, for instance, would be flagged as both missing ("NA") and not a number ("NaN"). It appears that I was wrong on both counts, although the is.finite function correctly returns FALSE in such a case. Please see the appended for some details. I guess that the bottom line is that R