similar to: External function resolution: MCJIT vs ORC JIT

Thanks so much! This seems to do the trick. I would have spun my wheels for a long time before discovering all of this, wow. Do I even want to know what additional chickens need to be sacrificed to get this to work on Windows? -- lg > On May 18, 2016, at 1:52 PM, Lang Hames <lhames at gmail.com> wrote: > > Hi Larry, > > You're basically there, but you're hitting

Hi Larry, Thanks so much! This seems to do the trick. I would have spun my wheels for > a long time before discovering all of this, wow. No worries. :) I'll try to keep this in mind and make sure I address it in future Kaleidoscope tutorial chapters - these issues tripped me up the first time I encountered them too. Do I even want to know what additional chickens need to be sacrificed

>> llvm::sys::DynamicLibrary::LoadLibraryPermanently(nullptr) This is one is a bit tricky and hard to find. I spent quiet some time digging into MC and ORC JIT execution engines trying to find what makes them work. The problem is that this trick (LoadLibraryPermanently) happens inside of EngineBuilder, despite that the functionality belongs to a JIT engine itself, not to the builder. I

To try to find out why it was crashing, I followed the trail of function calls: C:\llvm\examples\Kaleidoscope\Orc\initial\toy.cpp auto ExprSymbol = J.findUnmangledSymbol("__anon_expr"); JITSymbol findUnmangledSymbol(const std::string Name) { return findSymbol(mangle(Name)); } JITSymbol findSymbol(const std::string &Name) { return CompileLayer.findSymbol(Name,

Hi, I think ExecutionEngine as a common interface for both Interpreter and MCJIT is almost useless in the current form. There are separated methods in ExecutionEngine for similar or the same features provided by Interpreter and MCJIT, i.e. to get a pointer to function you should call getPointerToFunction() for Interpreter or getFunctionAddress() for MCJIT. Personally, I'm using MCJIT and

Addendum: this still fails: auto ExprSymbol = J.findSymbol("putchard"); As yet, I have no idea why - that symbol even seemed to be exported: extern "C" double putchard(double X) { putchar((char)X); return 0; } On Fri, Apr 1, 2016 at 2:42 AM, Russell Wallace <russell.wallace at gmail.com> wrote: > To try to find out why it was crashing, I followed the

Hi all, hi Lang It's a little late to report issues for release_50, but I just found that thing while porting my JitFromScratch examples to 5.0. This is a really nifty detail, but (if I'm not mistaken) the function signature of RTDyldObjectLinkingLayer::NotifyLoadedFtor is incorrect: $ grep -h -r -A 1 "using NotifyLoadedFtor"

I would like to replace a few varaibles within a data frame. For example, in the dataframe below (contrived) I would like to replace the current housesize value only if the Location is HSV. However, I would like to leave the other values intact. I tried "ifelse", but I don't really need the else condition. test_data2_df<-data.frame(Variables=c("SQR

Hello list, I just started R today and tried something quite simple. I wanted to create a colored plot and eventually after hours of fiddling around got it working. However, my solution seems very suboptimal and I'd really appreciate your hints on how to improve. I believe that R already offers many functions I coded (e.g. distance between two vectors, vector length, vector normalization and

Good morning, I am investigating dll import in R under Windows XP. Using examples I found on the internet, I started with a very simple dll, e.g. including only the basic function: void { *x2 = x*x; }sqr(doublex, double*x2) I compiled it as a dll with Eclipse and Cygwin's gcc. It works when I call it with another simple .exe C program, compile with Eclipse and gcc as well. I can do what I

I was having some problems persuading optim() to give me the answers I wanted, & simplified down to: sqr<-function(x){(x+1)^2} optim(1,sqr) I accept this is a hammer to crack a nut, but was still expecting the answer -1. I got: $par [1] -0.8 $value [1] 0.04 $counts function gradient 12 NA $convergence [1] 0 $message NULL so I've

Following a discussion about numerical performance on comp.lang.functional recently I just tried running a simple C mandelbrot benchmark that uses C99's complex arithmetic using gcc and llvm-gcc on a 2.1GHz Opteron 2352 running Debian: gcc: 5.727s llvm-gcc: 1.393s There is still 20% room for improvement but LLVM is >4x faster than gcc here. Sweet. Here's the code: #include

Hi I’ve previously used the ExecutionEngine::addGlobalMapping to make existing functions available to my JITed code. I’m currently using ORC, as MCJIT does not appear to be maintained any longer (the kaleidoscope examples have not worked for some time with MCJIT). I’m using just the basic ORC CompileLayer directly. So, I’ve essentially copied the ExecutionEngine::addGlobalMapping related

Hi Andy, I haven't tested this on Linux, but on MacOS the RuntimeDyldMemorManager::getSymbolAddressInProcess method should find symbol addresses in the host program, including symbols from static archives linked into the program. However, one gotcha is that the symbol has to be reachable from main, otherwise the linker may strip it from the final executable. Do you have a test-case that I

Hi Andy, I think that makes sense. I'm currently rewriting the core Kaleidoscope tutorials - I'll look at adding support for this. - Lang. On Fri, Aug 14, 2015 at 7:38 AM, Andy Somogyi <andy.somogyi at gmail.com> wrote: > After some fiddling with it, it does in fact look like it works as you > describe Lang. > > The trick was you had to call > >

Sirs, I have recently been interested in your Maxstat. I have computed with my own programme the ranks (by using the Kaplan-Meier method and the log-rank test) with the formula (Observed-Expected)/(SQR Var). The results are similar but not exact to the M value obtained with the Maxstat. I would like to know whether you are using some correction or adjustment in computing the different ranks. Thank

Lang, I added the add/get global mapping to my kaleidoscope JIT, but I think perhaps these would make more sense if they were added to the object linking layer as they would be generally usable there. On Aug 19, 2015, at 11:19 PM, Andy Somogyi wrote: > Hey Lang, > > I've added this to my Kaleidoscope JIT, and it seems to work just fine, basically I copied the global mapping

Dear R experts, I really have difficulty when I try to deal with this question. suppose X is a square symmetric matrix. The exponent of X is defined by the matrix limit as following: exp(X) = lim (I + X/n)^n, note: the limit is from n to infinite. How can I write R function for the above? Thank you very much -- View this message in context:

I noticed a problem using R 2.7.1 on Windows XP SP2 with the precompiled Atlas Rblas.dll. Running the code below causes R to crash. I started R using Rgui --vanilla and am using the precompiled Atlas Rblas.dll from cran.fhcrc.org dated 17-Jul-2007 05:04 for Core2 Duo. The code that causes the crash: x <- rnorm(100) y <- rnorm(100) z <- rnorm(100) loess(z ~ x * y) loess(z ~ x) does

I would compile a table of all the words in the dataset (maybe you have it already), then create a list where each component is an integer vector of indices of words. That is, replace words by their positions in the table. >From that sparse form you could create binary features to use with standard classification methods, or for example compute the X'X matrix for linear regression