commit | b3511d216524a60674daae211806186ffcf371c8 | [log] [tgz] |
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author | Matthias Boehm <mboehm7@gmail.com> | Fri Jul 24 15:34:50 2020 +0200 |
committer | Matthias Boehm <mboehm7@gmail.com> | Fri Jul 24 15:35:16 2020 +0200 |
tree | e770671a45ec4d6f45f937748a2b2466ade09576 | |
parent | b1a5247a82d5650c1365f49fd1305ffe974de638 [diff] |
[SYSTEMDS-2576] Fix dop unoptimized functions (parfor-eval/parmserv) This patch fixes the degree of parallelism of unoptimized functions as called in second-order functions such as eval and paramserv to avoid excessive CPU over-commitment. For example, on a box with 32 threads, paramserv would run 32 local workers and each worker use 32 threads for individual operations (1024 threads total).
Overview: SystemDS is a versatile system for the end-to-end data science lifecycle from data integration, cleaning, and feature engineering, over efficient, local and distributed ML model training, to deployment and serving. To this end, we aim to provide a stack of declarative languages with R-like syntax for (1) the different tasks of the data-science lifecycle, and (2) users with different expertise. These high-level scripts are compiled into hybrid execution plans of local, in-memory CPU and GPU operations, as well as distributed operations on Apache Spark. In contrast to existing systems - that either provide homogeneous tensors or 2D Datasets - and in order to serve the entire data science lifecycle, the underlying data model are DataTensors, i.e., tensors (multi-dimensional arrays) whose first dimension may have a heterogeneous and nested schema.
Quick Start Install, Quick Start and Hello World
Documentation: SystemDS Documentation
Python Documentation Python SystemDS Documentation
Status and Build: SystemDS is still in pre-alpha status. The original code base was forked from Apache SystemML 1.2 in September 2018. We will continue to support linear algebra programs over matrices, while replacing the underlying data model and compiler, as well as substantially extending the supported functionalities. Until the first release, you can build your own snapshot via Apache Maven: mvn clean package -P distribution
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