I know that questions about multi-threading performance in Julia have already been asked (e.g. here), but they involve fairly complex code in which many things could be at play. Here, I am running ...

I'm trying to run Chapel in multi-locale mode with Slurm. However, 'make check' fails. Could someone help me with that? I used Chapel 1.23.0. Here are the actual commands I used: cd chapel-1.23.0/ ...

I have the following Chapel code. proc update(x: int(32)) { return 2*x; } proc dynamics(x: int(32)) { return update(x); } writeln(dynamics(7)); I would like to send some kind of callback to ...

I'm trying to see if I can use Chapel for writing parallel code for use in a Python-based climate model: https://github.com/CliMT/climt I don't have any experience with Chapel, but it seems very p...

I'm implementing a distributed version of the Barnes-Hut n-body simulation in Chapel. I've already implemented the sequential and shared memory versions which are available on my GitHub. I'm follo...

Using writef(), I can control the output precision of a floating-point number, for example: writef( "%20.15dr\n", 1.0 / 3.0 ); // 0.333333333333333 but if I use writeln() for convenience, the nu...

I am trying to implement an SOR, successive over relaxation, program in Chapel for multi-locale, but with local memory so I want to distribute rows among the locales explicitly. I already have resh...

I am learning Chapel and have worked with blockdist but I can't figure out how can I distribute a 2-dimension array in row wise fashion among locales.

I'd like to try out classes and polymorphism in Chapel, so I am trying to get the following example code to work: module SomeAnimals { class Animal { } class Bird: Animal { } class Fish: A...

Chapel domains have two sets of methods domain.low, domain.high and domain.first, domain.last What are the various cases where these return different results (i.e when is domain.first != dom...

Suppose I have class Student, BadStudent:Student, GoodStudent:Student and ExcellentStudent: Student. I want a class method to only operate on Good and Exceptional students. Something like: class A...

I've been trying out Chapel off and on over the past year or so. I have used C and C++ briefly in the past, but most of my experience is with dynamic languages such as Python, Ruby, and Erlang more...

I have a hypergraph data structure with two arrays, one for edges, and one for vertices (similar to bipartite graph). I have a problem with resizing the arrays, so I tried the simplified example: ...

Let's say I'm generating tuples and I want to concatenate them as they come. How do I do this? The following does element-wise addition: if ts = ("foo", "cat"), t = ("bar", "dog") ts += t gives t...

The following code is my code for calculating pi = 3.1415... approximately using this formula: use Time; var timer = new Timer(); config const n = 10**9; var x = 0.0, s = 0.0; // timer.start(); ...

I looked at the writef() documentation for any bool specifier and there didn't seem to be any. In a Chapel program I have: ... config const verify = false; /* that works but I want to use writef(...

I'm trying to return a reference to a slice of an array , but am getting the following compile-time error (where the offending line is in slice test.chpl:9: error: illegal expression to return b...

Unlike other languages, there seems no allocate or new syntax in Chapel for allocating arrays on the heap, but rather use the usual "declaration"-like syntax. For example, in the following code, I ...