R and Partial Evaluation with Graal

[Jaroslav Tulach]

### Monday 16 of May 2016, 09:57:16 @ Juan Fumero ###
> Hi Jaroslav,
>    Thanks a lot for the suggestion.  
>    
> I get the same error unless I use the suggested flag in the VM. I
> understand this is the same that setting the JAVA_HOME to GraalVM. 

But if you use the flag to suppress the error, what instance of 
Truffle.getRuntime() do you get? The default one? That one is slow...

I don't know what to advice. Looking at the history
https://github.com/graalvm/truffle/commits/master/truffle/com.oracle.truffle.api/src/com/oracle/truffle/api/Truffle.java

I don't see that many changes. I don't think the JDK9 related changes could 
cause much harm.
-jt

> 
> On Mon, 2016-05-16 at 09:06 +0200, Jaroslav Tulach wrote:
> > Hello Juan,
> > I think you can choose your JDK with:
> > 
> > fastr$ mx --java-home /path/to/graalvm R
> > 
> > -jt
> > 
> > 
> > ### Sunday 15 of May 2016, 13:04:29 @ Juan Fumero ###
> > 
> > > Hi all, 
> > >   I am using the R version [1] in github. I saw there is no
> > > dependency
> > > now with Graal-core. Just Truffle instead. My question is how to
> > > use
> > > now the Graal JVMCI compiler. 
> > > 
> > > I compile with the graal-core [2] compiler separately. But when I
> > > execute R I get this error:
> > > 
> > > <error>
> > > $ mx R 
> > > ..... 
> > > Exception in thread "main" java.lang.InternalError
> > > 
> > > 	at com.oracle.truffle.api.Truffle$1.run(Truffle.java:103)
> > > 	at com.oracle.truffle.api.Truffle$1.run(Truffle.java:58)
> > > 	at java.security.AccessController.doPrivileged(Native Method)
> > > 	at com.oracle.truffle.api.Truffle.initRuntime(Truffle.java:58)
> > > 	at com.oracle.truffle.api.Truffle.<clinit>(Truffle.java:46)
> > > 	at
> > > 
> > > com.oracle.truffle.api.impl.Accessor.<clinit>(Accessor.java:321)
> > > 
> > > 	at
> > > 
> > > com.oracle.truffle.api.vm.PolyglotEngine.<clinit>(PolyglotEngine.ja
> > > va:1
> > > 07)
> > > 
> > > 	at
> > > 
> > > com.oracle.truffle.r.engine.shell.RCommand.readEvalPrint(RCommand.j
> > > ava:
> > > 191)
> > > 
> > > 	at
> > > 
> > > com.oracle.truffle.r.engine.shell.RCommand.main(RCommand.java:85)
> > > Caused by: java.lang.reflect.InvocationTargetException
> > > 
> > > 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > > 	at
> > > 
> > > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImp
> > > l.ja
> > > va:62)
> > > 
> > > 	at
> > > 
> > > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcc
> > > esso
> > > rImpl.java:43)
> > > 
> > > 	at java.lang.reflect.Method.invoke(Method.java:498)
> > > 	at com.oracle.truffle.api.Truffle$1.run(Truffle.java:100)
> > > 	... 8 more
> > > 
> > > Caused by: java.lang.NoClassDefFoundError:
> > > com/oracle/truffle/api/TruffleRuntimeAccess  (suppress with
> > > -Djvmci.service.suppressNoClassDefFoundError=true)
> > > 
> > > 	at jdk.vm.ci.services.Services$1.computeValue(Services.java:59)
> > > 	
> > > 	at jdk.vm.ci.services.Services$1.computeValue(Services.java:50)
> > > 	
> > > 	at java.lang.ClassValue.getFromHashMap(ClassValue.java:227)
> > > 	at java.lang.ClassValue.getFromBackup(ClassValue.java:209)
> > > 	at java.lang.ClassValue.get(ClassValue.java:115)
> > > 	at jdk.vm.ci.services.Services.loadSingle(Services.java:120)
> > > 	... 13 more
> > > 
> > > Caused by: java.lang.ClassNotFoundException:
> > > com.oracle.truffle.api.TruffleRuntimeAccess
> > > 
> > > 	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
> > > 	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> > > 	at
> > > 
> > > java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:814)
> > > 
> > > 	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> > > 	at java.lang.ClassLoader.defineClass1(Native Method)
> > > 	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
> > > 	at
> > > 
> > > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:
> > > 142)
> > > 
> > > 	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
> > > 	
> > > 	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
> > > 	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
> > > 	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
> > > 	at java.security.AccessController.doPrivileged(Native Method)
> > > 	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
> > > 	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> > > 	at
> > > 
> > > java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:814)
> > > 
> > > 	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> > > 	at jdk.vm.ci.services.Services.getServiceImpls(Native Method)
> > > 	at jdk.vm.ci.services.Services.access$000(Services.java:37)
> > > 	at jdk.vm.ci.services.Services$1.computeValue(Services.java:54)
> > > 	
> > > 	... 18 more\
> > > 
> > > </error>
> > > 
> > > So I run with the option suggested in the error:
> > > 
> > > $ mx -v R --J @'-Djvmci.service.suppressNoClassDefFoundError=true '
> > > myScript.R 
> > > 
> > > I can run FastR but,  is this the use of  the Partial Evaluator in
> > > Graal through the OptimizedCallTarget? 
> > > 
> > > [1] https://github.com/graalvm/fastr 
> > > [2] https://github.com/graalvm/graal-core/commit/071173a4a61247df08
> > > 26a0
> > > 1db20bf7b381f1bbfe 
> > > 
> > > Thanks
> > > -juan