search for: agu

Dear Achim, Thanks for the comment. Here is the publisher's style guideline (AGU) "Because the Internet is dynamic environment and sites may change or move, treat World Wide Web, ftp files, and electronically archived data stored at data centers other than World or National Data Centers as unpublished, i.e., in text only." http://www.agu.org/pubs/AuthorRefSheet.pdf S...

...a long time to complete (on the order of 150 clock cycles). Since we don't have a way to tell at compile time if the address being loaded from lies in slow or fast memory, I've gone ahead and made all of the load numbers high, such as: InstrItinData< II_LOAD1, [InstrStage<150, [AGU]>]>, However, I see that there is another field which I haven't specified where operand latencies are specified. Here's an example from ARMScheduleA8.td: InstrItinData<IIC_iALUi ,[InstrStage<1, [A8_Pipe0, A8_Pipe1]>], [2, 2]>, Now I'm wondering if Instead of what...

...er of 150 clock cycles). Since we don't have a way >> to tell at compile time if the address being loaded from lies in slow or >> fast memory, I've gone ahead and made all of the load numbers high, such as: >> >> InstrItinData< II_LOAD1, [InstrStage<150, [AGU]>]>, >> >> However, I see that there is another field which I haven't specified >> where operand latencies are specified. Here's an example from >> ARMScheduleA8.td: >> >> InstrItinData<IIC_iALUi ,[InstrStage<1, [A8_Pipe0, A8_Pipe1]>], [...

Hi All, I have a character vector by name tickers > head(tickers,10) V1 1 ADARSHPL.BO 2 AGR.V 3 AGU 4 AGU.TO 5 AIMCO.BO 6 ALUFLUOR.BO 7 AMZ.V 8 AVD 9 ANILPROD.BO 10 ARIES.BO I would like to extract all elements that has ".BO" in it. I tried > grep("\.BO",tickers) Error: '\.' is an unrecognized escape in character string starting &q...

Hi, Here is an update on our proposal to improve the uses of LEA on Atom processors. 1. Disable current generation of LEAs Due to a 3 cycle stall between the ALU and the AGU any address generation done using math instruction will cause a stall on loads and stores which are within 3 cycles of the address generation. Consequently, the heuristics for using LEAs efficiently must know how many cycles pass between the address generation and its use. However, currently LEAs a...

> > Hi every body, > > Please if some one could help me with this: > I'm writing an AGU Perl Script which basically makes a call using an extension provided by other asterisk box to an E1. The asterisk version is 1.6.0.28, so it hasn't the Wellington know AGI class. The code is as follows: > > ============================= > #!/usr/bin/perl > use strict; > > my...

...6, Nowicki, Tyler <tyler.nowicki at intel.com> wrote: > Hi, > > > > Here is an update on our proposal to improve the uses of LEA on Atom > processors. > > > > 1. Disable current generation of LEAs > > > > Due to a 3 cycle stall between the ALU and the AGU any address generation > done using math instruction will cause a stall on loads and stores which are > within 3 cycles of the address generation. Consequently, the heuristics for > using LEAs efficiently must know how many cycles pass between the address > generation and its use. Howev...

...see how we can use ReadAdr stuff here. May be forwarding is not supposed to work in such cases for ARM cpus? Cortex-A55 software optimization guide says this: “load data from a limited set of load instructions can be forwarded from the beginning of the wr pipeline stage to either the load or store AGU base operand” However nothing is said about pre/post indexed forms. From: Andrew Trick<mailto:atrick at apple.com> Sent: 15 сентября 2020 г. 7:04 To: Evgeny Leviant<mailto:eleviant at accesssoftek.com> Cc: llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org> Subject: [E...

I made a new rails app and when i started the server ,it gave following error message. => Booting Mongrel => Rails 2.3.8 application starting on http://0.0.0.0:3000 => Call with -d to detach => Ctrl-C to shutdown server Exiting /usr/lib/ruby/1.8/mongrel/tcphack.rb:12:in `initialize_without_backlog'': Address already in use - bind(2) (Errno::EADDRINUSE) from

Hi guys Can i get some reference for studying all ActivRecord API related to DB transactions. -- Karthik.k Mobile - +91-9894991640

I've got a server running CentOS 4.2; installed as 4.1, kept updated by yum. A few days ago it crashed. I picked it up from the datacenter, and brought it back to the office, where it took a long time to boot because it couldn't find anything. When it finally booted and I logged in I discovered an interesting problem. Only the / partition had loaded. /etc/fstab had all the

...e??o 2,3,4 ????a???? ???c??a 9,10,17,25 C???oc??? E?e??? 27 ????p ?/? ?.?a?????a ?? ?c??o?o ?y?pe?? go?o???o ?po????? ?. ????u? 12 ????????? a?????pu??? ?e???c? ??y?? ?. ???? 15 ?c?? ?.?u???? 19 ??a a??e?a, ?????e ?e?o?e?? ?.?e?g??o??? 25 ?e??? ????epc??? ?.?o????? ?o???e? ?.??agu??? 3,4,22,23 O?????e???? ???u?a ?. ?????e? 7,8,28,29 ???????? u? ?a?? ?.}|{upo?? 10,13,14 ??u??????e ???? ?. ????o? 11,28 Og?? ??co????o ??????u??? g?????? ?.?ax?u? 16,17 ????? ?a ?p??g?u? ypo??? ?.??u? 19,20 ??u?? u ?up ?.?. ???c??? 22,23 ????? ?o?u ?.?.?o??o?????? 25,26 C?????o? c?a??ue 29,3...

Hi all, I'm interested in obtaining the cycles spend by the CPU from LLVM and i was wondering if this was possible to obtain this with the scheduling information from LLVM. (For the cortex-m0 in particular). I found the following function : getInstrLatency() in the TargetInstrInfo class. If i sum the latencies of the instructions in a basic block i suppose i will get the total cycle cost

Hi list, Is it possible to simulate load to store forwarding on aarch64 with MI scheduling model on AArch64? For instance $x0 data latency in the example below should be 1 cycle ldr $x0, [$x1] str $x0, [$x2] But it should be 4 cycles if we have another instruction: ldr $x0, [$x1] add $x0, $x0, 4 For ALU instructions it’s possible to use either ReadAdvance or SchedReadAdvance, but I don’t see

...ned key) { return dm.lookup(key); } is compiled down it contains: leaq (%r8,%rdi,8), %rax movl 4(%rax), %eax when what you really want is: movl 4(%r8,%rdi,8), %eax Exactly how bad that is depends on the exact micro architecture as some machines have different cache port configs and AGU capabilities, but it isn’t good. The reason why we get into this situation is that The IR that results GEP->PHI->GEP->LOAD chain. Currently the first GEP and the GEP->LOAD are being matched separately into the leaq and movl respectively. I wrote some code to move GEPs across PHIs so tha...