#+TITLE: Sixth - system for data storage, computation, exploration and interaction
-----
-- [[http://www2.svjatoslav.eu/gitweb/?p=sixth.git;a=snapshot;h=HEAD;sf=tgz][download latest snapshot]]
+- Clone GIT repository using commanad:
+ : git clone http://www2.svjatoslav.eu/git/sixth.git
-- This program is free software; you can redistribute it and/or modify it under
- the terms of version 3 of the [[https://www.gnu.org/licenses/lgpl.html][GNU Lesser General Public License]] or later as
- published by the Free Software Foundation.
+- [[http://www2.svjatoslav.eu/gitweb/?p=sixth.git;a=snapshot;h=HEAD;sf=tgz][Download latest snapshot in TAR GZ format]]
+
++ This program is free software: you can redistribute it and/or modify
+ it under the terms of the [[https://www.gnu.org/licenses/lgpl.html][GNU Lesser General Public License]] as
+ published by the Free Software Foundation, either version 3 of the
+ License, or (at your option) any later version.
- Program author:
- Svjatoslav Agejenko
- Homepage: http://svjatoslav.eu
- Email: mailto://svjatoslav@svjatoslav.eu
-- [[http://svjatoslav.eu/programs.jsp][other applications hosted at svjatoslav.eu]]
+- [[http://www.svjatoslav.eu/projects/][Other software projects hosted at svjatoslav.eu]]
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-* Vision / goal - A tool to amplify human ability
+* Vision - A tool to amplify human ability
:PROPERTIES:
:ID: 1f4e1c17-d25f-4d92-aa9b-5785f1d86f4f
:END:
-In short, this is what I want:
-
-- [[id:4224d52c-2ee1-411a-bd89-77c286322b21][Perfect data storage and computation engine]]
+#+BEGIN_VERSE
+Makes lots of complex data intuitive to:
+ - explore, understand
+ - manipulate and compute on
-- Feeds lots of complex data into your brain in intuitive to explore,
- understand and manipulate form by extensively relying on realtime 3D
- graphics and fast feedback loop. (including virtual reality support)
+by extensively relying on:
+ - [[http://www3.svjatoslav.eu/projects/sixth-3d/][Realtime 3D graphics]] with immediate feedback loop.
+ - [[http://www3.svjatoslav.eu/projects/sixth-data/][Flexible and distributed computation and data storage]].
+#+END_VERSE
- #+BEGIN_QUOTE
- “Virtual reality holds the key to the evolution of the human mind”
- Dr. Lawrence Angelo, The Lawnmower Man (1992)
- #+END_QUOTE
+#+BEGIN_QUOTE
+“Virtual reality holds the key to the evolution of the human mind”
+Dr. Lawrence Angelo, The Lawnmower Man (1992)
+#+END_QUOTE
-** Perfect data storage and computation engine
- :PROPERTIES:
- :ID: 4224d52c-2ee1-411a-bd89-77c286322b21
- :END:
-I love thease existing solutions and properties:
-
-+ Lisp (programming language):
- + Almost no syntax.
- + Code and data intercangeable.
- + Easily self modifying.
-
-+ Smalltalk (programming language / runtime):
- + Everything is object.
- + On the fly modifiable / reprogrammable.
- + Anything can be suspended/resumed from persistent storage on the
- fly.
-
-+ Relational databases:
- + Transactional
- + Indexable / Quickly searchable
-
-+ Git (version control system)
- + Versionable
- + Branchable / mergeable.
- + Transparent cansistency, checksumming and deduplication.
-
-+ Hadoop (computation system):
- + Many individual connected computers behave as one big
- computer. System is horizontally linearly scalable.
- + Programming abstraction and execution model that naturally divides
- problems te be solved in parallel and result easily combined.
- + Data is spread across nodes, automatic failover, built in
- resiliency.
- + Small pieces of code are automatically transferred to the node
- that contains relatively big data that needs processing (network
- efficiency).
-
-
-I hate to choose between good things. Figuring out a way to combine
-above properties in one system would be beyond awesome.
-
-(I have not solved it yet..)
* Current status
+ Formulated high-level [[id:1f4e1c17-d25f-4d92-aa9b-5785f1d86f4f][vision / goal]].
+ In the process of implementing some of building blocks:
- - [[http://www2.svjatoslav.eu/gitbrowse/sixth-data/doc/index.html][First layer of storage: Simple persistent key-value map.]]
+ - [[http://www2.svjatoslav.eu/gitbrowse/sixth-data/doc/index.html][Data storage engine.]]
- [[http://www2.svjatoslav.eu/gitbrowse/sixth-3d/doc/index.html][In software, pure Java realtime 3D rendering engine.]]
- [[http://www2.svjatoslav.eu/gitbrowse/sixth-3d-demos/doc/index.html][3D engine demos]]
+ System is nowhere near complete (given magnitude of effort required
and my free time available). Contributions welcome ! :)
+
+* Computation ideas
++ Program - stored instructions for execution by computer.
+
++ Process - Currently running program.
+ + Process is self contained. Has a full copy of program code and
+ every dependent library.
+
+ + Memory used by processes is content addressed/deduplicated at
+ low level in the system.
+
+ + This allows:
+ + Upgrading software installed in the system without breaking
+ already running processes.
+
+ + Easier migration of running processes between physical
+ computers.
+
+ + Possibility to suspend/resume arbitrary processes to permament
+ storage.
+
+ + Possibility checkpoint/revert running process.
+
+ + Possibility to clone/branch running process.
+
+* Frequently Given Answers
+- Why such name ?
+ - In short: it's just a number.
+ - Many years ago inspired by the ideas of [[https://en.wikipedia.org/wiki/Forth_(programming_language)][Forth (programming
+ language)]] I decided to create my own implementation [[http://www3.svjatoslav.eu/projects/fifth/][Fifth]]
+ (computing/programming environment).
+ - Then I realized I miss type safe object oriented capabilities. So
+ I updated the name to Sixth and switched to Java.
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