similar to: [LLVMdev] IR code generation and JIT execution in a multithread environment

Hi Everyone, my goal is to create a service with multiple threads, each of them generating IR code and JIT'ing/executing it in their threads and some threads will share generated code through a code repository... 1. Is there a guideline/docu out there, which describes serialization of some LLVM objects, especially llvm::ExecutionEngine, llvm::ModuleProvider, llvm::Module? 2. Since

On Jan 12, 2009, at 11:10, Edgar Geisler wrote: > my goal is to create a service with multiple threads, each of them > generating IR code and JIT'ing/executing it in their threads and > some threads will share generated code through a code repository... Hi Edgar, Module and Value are unsafe for concurrent access--even disjoint instances thereof. So you'll need to hold a

Quick related Q: Does the global lock of the JIT during code generation prevent concurrent execution of already JIT-ted code? Thanks. On Jan 12, 2009, at 9:34 AM, Gordon Henriksen wrote: > On Jan 12, 2009, at 11:10, Edgar Geisler wrote: > >> my goal is to create a service with multiple threads, each of them >> generating IR code and JIT'ing/executing it in their threads

> > It just occurred to me... in the case where it's failing, the > ExecutionEngine was trying to JIT a global, and it had never JITted > any functions!  I'll work up a small test case, but I think it's > relevant since the thing is trying to allocate the globals with the > functions. > That was it! The following small test program crashes in getPointerToGlobal:

I'm trying to set up some automated testing, and I'd like to have multiple instances of ExecutionEngines, so that the state from the first test doesn't alter the second state. Right now I'm doing something along the lines of: Module *emptyModule = new Module("emptyModule"); ExecutionEngine executionEngine = ExecutionEngine::create(emptyModule);

On Sun, 15 Jul 2007, Paolo Invernizzi wrote: > First, I'm not sure if deleting the ExecutionEngine is all I need to > clean-up... so I started with a minimal test just to check Is this llvm 2.0 or llvm svn head? Several minor memory leaks have been fixed since llvm 2.0. -Chris > int main( int argc, char **argv ){ > while( true ){ > Module *M = new

First, I'm not sure if deleting the ExecutionEngine is all I need to clean-up... so I started with a minimal test just to check int main( int argc, char **argv ){ while( true ){ Module *M = new Module("M"); Function *F = cast<Function>(M->getOrInsertFunction("F", Type::Int32Ty, (Type*)0)); BasicBlock *BB = new

Hi all, I have some questions on some strange behavior I'm seeing with LLVM JIT in a multithreaded application. If this is the wrong forum for questions like this, I apologize, and please redirect me. The setup of the application is a singleton instance of a static Compiler object, which maintains local copies of an LLVM Module, JIT ExecutionEngine, and FunctionPassManager with registered

On Mon, 9 Aug 2004, Reid Spencer wrote: > Attached are three files: "valery.cpp" which contains your original, "reid.cpp" > which contains corrections to most of the FIXME items and "diffs" which shows > the differences between them. The differences should be instructive on what to > do. You were really, really close .. just a few details changing. The

Valery, First response of several. I don't know why the demo page at UIUC is unavailable but there is an enhanced copy of it running on the mirror at http://llvm.x10sys.com/demo/ if you ever need it. Running it produced the following LLVM equivalent for the C code in your example. implementation ; Functions: int %add1(int %x) { entry: %tmp.1 = add int %x, 1 ; <int> [#uses=1]

Hi all, Here's an example of how to LLVM's JIT compiler/interpreter from Ocaml. $ cat jithelloworld.ml (* jithelloworld.ml *) open Llvm open Llvm_executionengine let execute_function f m = (* Set up the JIT. *) let jit = ExecutionEngine.create (ModuleProvider.create m) in ExecutionEngine.run_static_ctors jit; (* Execute the function. *) ignore

On Mon, Jun 22, 2009 at 4:43 PM, Chris Lattner <clattner at apple.com> wrote: > > On Jun 22, 2009, at 2:19 PM, Kasra wrote: > > Hi, > > for some reason I could not get the machine code generator for x86 > working. The interpreter is the only thing that works, is there > anything that I am missing here? > > This recently changed.  In your main program, please

On Wed, Jul 25, 2012 at 12:24 AM, Kaylor, Andrew <andrew.kaylor at intel.com> wrote: > Following up and expanding on an earlier conversation, I'd like to discuss > making several non-trivial changes to the MCJIT engine and related objects. I would like to take part in this discussion (http://lists.cs.uiuc.edu/pipermail/llvmdev/2012-July/052022.html) but there are still subjects

Hi, Would it be possible to make the following slight change to ExecutionEngine::create()? I would like to be able to disable the automatic enumeration of loaded modules, and the subsequent searching for undefined symbols (using SearchForAddressOfSymbol). I propose adding an extra parameter to the function definition, defaulting to true. static ExecutionEngine *create(ModuleProvider *MP,

On Jul 22, 2009, at 9:43 PM, Rob Grapes wrote: > Hi, > > Would it be possible to make the following slight change to > ExecutionEngine::create()? > > I would like to be able to disable the automatic enumeration of > loaded modules, and the subsequent searching for undefined symbols > (using SearchForAddressOfSymbol). > > I propose adding an extra parameter to

Hello! I have a data set with 8 columns and in about 5000 rows. What I want to do is to generate samples of this data set. Samples of a special size, as example 200. What is the easiest way to do this? No special things are needed, only the random selection of 200 rows of the data set. Thanks Alex -- Alexander Geisler * Kaltenbach 151 * A-6272 Kaltenbach email: alexander.geisler at gmx.at

Hi all, I think I might have found a potential bug when using SSE intrinsic and unaligned memory. Here's the code to reproduce it: #include "llvm/Module.h" #include "llvm/Intrinsics.h" #include "llvm/Instructions.h" #include "llvm/ModuleProvider.h" #include "llvm/ExecutionEngine/JIT.h" #include

Valery, Your JIT sample program has been added to projects/HowToUseJIT. I have defaulted the license to the standard UIUC license. Let me know if that's not okay and I'll fix it. If you continue to work on this (providing a command line option to use either interpreter or JIT would be nice), please provide patches against these files and I'll commit them for you. Here's the

Hello! I have the following problem. My code: --snip-- ergebnisse <- rep(0, each=2) stichproben <- rep(0, each=2) for (i in seq(1:2)) { n <- dim(daten)[1] ix <- sample(n,200) # producing samples samp_i <- daten[ix,] stichproben[i] <- samp_i # doesn???t works # Calculation of the model: posterior_i <- MCMClogit(y ~ fbl.ind + fekq3 + febitda4 + fuvs + fkru +

Hello! So, the simulation works (drawing 100 samples and then calculate the model for each sample). Here is the code: --snip-- # sample size n=200 ergebnisse200 <- rep(0, each=100) stichproben200 <- vector(?list?, 100) default200 <- rep(0, each=100) for (i in seq(1:100)) { n <- dim(daten)[1] ix <- sample(n,200) samp_i <- daten[ix,] # draw samples y <- sum(samp_i$y)