Hi Marc, the "No stacktrace" BadPlaceException also caused me trouble and I have raised as http://jira.codehaus.org/browse/XTENLANG-540
Debugging with GDB should allow you to see where the exception is thrown. You will need to compile for debugging and then debug each place as a separate process. There are some instructions at http://docs.codehaus.org/display/XTENLANG/X10+Application+Development (right at the end). In X10 1.7, an object of reference type (any class that inherits from x10.lang.Ref) has a field "location" which is the Place at which the object is located. For distributed arrays, Array.dist(pt: Point) or Array.dist(i0 : Int, i1 : Int, ...) give the Place to which the given Point/index is mapped. For example myArray.dist(1,2) I have also observed the x10c++ warnings, they seem benign but I agree they should probably be cleaned up at some stage. Cheers, Josh TAJCHMAN Marc wrote: > Hi, > > As I'm doing several tests in X10 and many wrong data placement errors ;-), > execution frequently produces output like this : > > 0.err: Uncaught exception at place 0: x10.lang.BadPlaceException: bad place > exception > 0.err: x10.lang.BadPlaceException: bad place exception > 0.err: at No stacktrace recorded. > > Is there a way (compiler option, runtime option, exception catching, other ?) > to have more information about the source line were exception occurs, wrong > access to which variable, call stack trace, etc ? > > Is there a function, macro, ... that can inform where a variable (scalar or > component of an array) is located ? UPC for example, has such a function > (upc_threadof). > > > > Also, the c++ compiler frequently issue the following warnings : > .../include/x10aux/bootstrap.h:104: warning : format ‘%ld’ expects type ‘long > int’, but argument 3 has type ‘x10_int’ > .../include/x10aux/bootstrap.h:113: warning : format ‘%ld’ expects type ‘long > int’, but argument 3 has type ‘x10_int’ > .../include/x10aux/bootstrap.h:126: warning : format ‘%ld’ expects type ‘long > int’, but argument 3 has type ‘x10_int’ > > Normally warnings like these ones are harmless, but one never knows. > > For info : > x10c++ version 1.7.6 > Polyglot compiler toolkit version 3.1.0 (2009-06-11 14:44:14) > (binary version downloaded from the web site) > > gcc/g++ : > Target: i486-linux-gnu > gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) > > Thanks in advance > Marc > > ------------------------------------------------------------------------------------ > Marc Tajchman > Laboratoire de Génie Logiciel et de Simulation > Software Engineering and Computer Simulation Laboratory > CEA-DEN/DANS/DM2S/SFME/LGLS > Tél : +33/1 69 08 73 27 > Fax : +33/1 69 08 52 42 > mailto:marc.tajch...@cea.fr > ------------------------------------------------------------------------------------ > > > Ce message électronique et tous les fichiers attachés qu'il contient > sont confidentiels et destinés exclusivement à l'usage de la personne > à laquelle ils sont adressés. Si vous avez reçu ce message par erreur, > merci d'en avertir immédiatement son émetteur et de ne pas en conserver > de copie. > > This e-mail and any files transmitted with it are confidential and > intended solely for the use of the individual to whom they are addressed. > If you have received this e-mail in error please inform the sender > immediately, without keeping any copy thereof. > > > > > -------- Message d'origine-------- > De: TAJCHMAN Marc > Date: mar. 22/09/2009 00:35 > À: x10-users@lists.sourceforge.net > Objet : Transfert between places > > Hi, > > I have a array distributed on 2 places and I want to copy a line of array > coefficients to another line > (i.e. a(0, j) <- a(1, j) for j=0 to 9). Both lines are on different places. > > What is the preffered way to do that ? > > Below there is a small example (each value is transfered separately). > It works, but I find my solution neither elegant neither efficient. > > Suggestions are welcome. > > Thanks in advance. > Marc > > //========================================================= > // example > > import x10.io.Console; > import x10.util.Timer; > > public value test10 > { > public static def println(s:String) = Console.OUT.println(s); > public static def print(s:String) = Console.OUT.print(s); > public static def now():double = Timer.nanoTime() * 1e-9; > > val a:Array[double]; > > def this() { > R : Region = Region.makeRectangular([0,0], [1,9]); > D : Dist = Dist.makeCyclic(R, 0); > a = Array.make[double](D, ((i,j):Point) => 10*i+j as Double) ; > } > > def output(val s : String) { > println("\n" + s); > for (p in a.dist.places()) > at (p) { > println("place : " + here); > for ((i,j): Point in a.dist.get(p)) > print(" " + a([i,j])); > println(""); > } > } > > def transfert() { > for ((i,j): Point in a.dist.get(Place.places(0))) > a([i,j]) = at (Place.places(1)) a([1-i,j]); > } > > static public def main(args : Rail[String]) { > > t:test10 = new test10(); > > t.output("before copy"); > t.transfert(); > t.output("after copy"); > } > > } > > > ------------------------------------------------------------------------------------ > Marc Tajchman > Laboratoire de Génie Logiciel et de Simulation > Software Engineering and Computer Simulation Laboratory > CEA-DEN/DANS/DM2S/SFME/LGLS > Tél : +33/1 69 08 73 27 > Fax : +33/1 69 08 52 42 > mailto:marc.tajch...@cea.fr > ------------------------------------------------------------------------------------ > > > Ce message électronique et tous les fichiers attachés qu'il contient > sont confidentiels et destinés exclusivement à l'usage de la personne > à laquelle ils sont adressés. Si vous avez reçu ce message par erreur, > merci d'en avertir immédiatement son émetteur et de ne pas en conserver > de copie. > > This e-mail and any files transmitted with it are confidential and > intended solely for the use of the individual to whom they are addressed. > If you have received this e-mail in error please inform the sender > immediately, without keeping any copy thereof. > > > > > -------- Message d'origine-------- > De: TAJCHMAN Marc > Date: dim. 20/09/2009 12:30 > À: x10-users@lists.sourceforge.net > Objet : Help for distributed arrays > > Hi everyone, > > Thanks for helping me on previous messages (especially Igor). > > Below are 2 versions of a test (defining and accessing a distributed array on > several places). > This is a variation of an example code from X10 distribution > (EncapsulatedArray2D). > > The first version is (apparently) working well but the second one launches > several x10.lang.BadPlaceException. > > The differences are : > > - first version : the distributed array is created and accessed only from the > static main function > - second version : the array is now a member of the class containing the main > function. It's created inside the class constructor and accessed from other > class method. > > Thanks a lot for any suggestion. > > Marc > > // ===================================================== > // working code > public class test8 { > > static def println(s:String) = Console.OUT.println(s); > static def print(s:String) = Console.OUT.print(s); > > static value bloc{ > val m_array: Array[double]; > def this(val a_array: Array[double]): bloc = { > m_array=a_array; > } > def init(val i:int) : Void = { > for (val (j): Point(1) in m_array) > m_array([j])= 10*j + i; > } > def output() : Void = { > for (val (j): Point(1) in m_array) { > println(" "+j+" : " + m_array([j])); > } > } > } > > > public static def main(a: Rail[String]) : void { > > val R : Region = [1..5]; > val r : Region = [1..3]; > > val D = Dist.makeCyclic(R, 0); > val A = Array.make[bloc] > (D, (p:Point) => > new bloc(Array.make[double](r->here,(Point)=>0.0D))); > > finish ateach (val (i): Point in D) > A([i]).init(i); > > for (val p in A.dist.places()) > at(p) { > val r : Region = A.dist.get(here); > for ((i): Point in r) { > println("subdomain "+i+" place = "+ here); > A([i]).output(); > println(""); > } > } > } > } > > // ======================================================== > // non working version > > public class test8c { > > val A : Array[bloc]; > > static def println(s:String) = Console.OUT.println(s); > static def print(s:String) = Console.OUT.print(s); > > static value bloc{ > val m_array: Array[double]; > def this(val a_array: Array[double]): bloc = { > m_array=a_array; > } > def init(val i:int) : Void = { > for (val (j): Point(1) in m_array) > m_array([j])= 10*j + i; > } > def output() : Void = { > for (val (j): Point(1) in m_array) { > println(" "+j+" : " + m_array([j])); > } > } > } > > def init() { > finish ateach (val (i): Point in A.dist) > A([i]).init(i); > } > > def output() { > for (val p in A.dist.places()) > at(p) { > val r : Region = A.dist.get(here); > for ((i): Point in r) { > println("subdomain "+i+" place = "+ here); > A([i]).output(); > println(""); > } > } > } > > def this() { > > val R : Region = [1..5]; > val r : Region = [1..3]; > > val D = Dist.makeCyclic(R, 0); > A = Array.make[bloc] > (D, (p:Point) => > new bloc(Array.make[double](r->here,(Point)=>0.0D))); > } > > public static def main(a: Rail[String]) : void { > val t : test8c = new test8c(); > t.init(); > t.output(); > } > } > > > > > > > > > > ------------------------------------------------------------------------------ > Come build with us! 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