This is to avoid again the nightmare of the original sites servers going dark as happened to X10 back in Having the same software hosted on our own site, should greatly reduce this from happening again. Only works on 16 and 32 bit operating systems XP or earlier. Should work with other 32 bit operating systems Vista, Windows 7, 8, and 10 though we have not been able to test it. The focus of the X10 2. The main features of this release are language extensions to enhance support for defining embedded DSLs in X In particular, an overloading mechanism for redefining or extending the behavior of control structures was added to X10 and X10 now supports a lightweight trailing closure syntax.
The proceedings for the X10'16 workshop are now available. The program for the X10'16 workshop is now available. You can now register for the workshop and associated events via the PLDI registration site. The early registration deadline lower registration fees is May We encourage submissions on all aspects of X10, including theory, design, implementation, practice, curriculum development and experience, applications and tools.
The deadline for abstract submission is Friday, March Please see the online call for papers for detailed information. The main features of this release are improvements to Resilient X10 including significant performance improvements to the implementations of resilient finish, the addition of ULFM-MPI as a network transport for Resilient X10 applications, and enhanced standard library support for writing Resilient X10 applications and frameworks.
Notable current gaps include library support, IDE and compiler performance, and runtime performance of certain X10 idioms. Of course, we are actively working on all these issues. See the latest X10 Release page for the list of pre-built binary platform-specific releases.
For the moment, X10 is primarily suitable as a research vehicle, for education, and for developers willing to experiment with an emerging language. Although fairly mature and stable for a research system, X10 is not yet a production-level programming language.
X10 does not yet ship in any IBM products. There are efforts underway to develop Xbased application frameworks and middleware that are intended for eventual production use. There are a number of collaborators exploring X10, adding to the language, testing it, developing courses for it, writing applications in it, and providing libraries and patterns.
For more details see the X10 Community sections in the menu above. X10 is a programming language, while Eclipse is often used to build integrated programming environments IDEs for programming languages, most notably Java. To report a bug or request an enhancement or new feature in X10 please first check to see if an entry already exists in JIRA. If it doesn't please create a new one. The more details you have in the bug report, the easier it will be for us to reproduce the problem and get it fixed.
We welcome contributions from the community! All contributions will be licensed under the Eclipse Public License and must be accompanied by a Contributor's License Agreement. See Contributing to X10 for details on the process.
Please see Performance Tuning for advice on how to get the best performance out of your X10 application. There is a prototype debugger available for X10 2.
It does not support X10 2. See the X10 Debugger page for more information. Like functional languages, X10 support first-class functions and closures, and encourages using immutable state. Unlike most functional languages, most X10 programs will feature some important mutable state. For this reason, X10 would not usually be called a functional language. X10 is a higher level programming model than MPI.
In general, X10 code should be much more concise than the equivalent MPI. There are at least two major philosophical differences between the MPI programming model and X the control flow, and the memory model.
In contrast, an X10 program begins with a single thread of control in the root place, and an X10 program spawns more threads of control across places using async and at. The MPI memory model is a completely distributed memory model. MPI processes communicate via message-passing. There is no shared global address space in MPI, so user code must manage the mappings between local address spaces in different processes. In contrast, X10 supports a global shared address space.
While an X10 activity can only directly access memory in the local Place address space , it can name a location in a remote place, and the system maintains the mapping between the global address space and each local address space.
The syntax for X10 allows programmers to write code where types can be elided in many cases, and the compiler automatically infers the correct types instead. We're working on a couple. The most up-to-date document is A Brief Introduction to X Helping us to develop a more comprehensive overview would be greatly appreciated! Some small examples are included in every X10 release. You can find information about larger benchmarks from the X10 release page as well.
Find out more about installing X10DT. The X10DT builds on the Eclipse framework. Much of the X10 runtime is implemented in X The two backends present different tradeoffs on different machines. In the medium term, the backends will support different models of interoperability with other languages. Eventually, we would like to make these two backends compatible with each other, so that some portions of a program can run on Java and other portions run natively.
Note that the ForkJoin scheduler may create more workers if the current worker suspends e. See the runtime section of the Performance Tuning page for more details. By default, the X10 runtime system is not robust with respect to Place failures. However, starting with X10 2.
The first level corresponds to concurrency within a single shared-memory process, which is represented by an X10 Place. Usually, you would use one Place per shared memory multiprocessor. The main construct for concurrency within a Place is the X10 "async" construct.
The second level of X10 concurrency supports parallelism across Places, or analogously, across processes that do not share memory. Usually, this would correspond to concurrency across nodes in a cluster of workstations.
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