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An end-to-end tour using a computer vision classification example with PowerAI Enterprise.
Nov 10, 2018
Artificial IntelligenceIBM PowerAI+
Learn Linux, 101: A roadmap for LPIC-1
Secure programming with the OpenSSL API
Learn Linux, 101: Configure hardware settings
Learn Linux, 101: File and directory management
Featured | Tutorial
Kernel live patching is a framework that allows to fix kernel implementation bugs on a live system running critical workloads by replacing a buggy code with a fixed version, without incurring any downtime and thus increasing system and application availability to the customers.
Featured | Article
Nov 11, 2018
QEMU provides support for virtual machines to use SCSI storage directly with SCSI pass-through, using the virtio-blk or virtio-scsi storage back-ends. virtio-scsi allows direct SCSI communication between the virtual machine and the physical device, allowing the virtual machine to use all the features the hardware supports.
Nov 12, 2018
In case you have not seen, IBM and Red Hat have announced the intent to come together to be the pre-eminent contributor to and provider of open source software.
This article describes a simple custom script that uses this Ping utility to monitor the availability of a list of IT resources (that support ICMP packets) by polling their IP addresses at a regular frequency. Their ping statuses are captured as events and are notified as email, SMS, and slack…
IBM Power SystemsLinux
This article describes the working of tuned daemon profiles on the Red Hat Enterprise Linux (RHEL) operating system version 7.x and CentOS version 7.x. It also describes the differences in the performance of tuned daemon profiles in the two operating systems.
IBM Power SystemsLinux+
This article describes the changes to the IBM Power Architecture that can be used to provide enhanced protection of virtual machines from other software running on the same system. A new higher privilege mode called Ultravisor mode is being introduced, along with the concept of secure virtual machines (SVMs). This…
Recursion is a tool not often used by imperative language developers, because it is thought to be slow and to waste space, but as the author demonstrates, there are several techniques that can be used to minimize or eliminate these problems. He introduces the concept of recursion and tackle recursive…
Python 2.2 introduces a new construct accompanied by a new keyword. The construct is generators; the keyword is yield. Generators make possible several new, powerful, and expressive programming idioms, but are also a little bit hard to get one's mind around at first glance. In this article, David provides a…
Although users usually think of Python as a procedural and object-oriented language, it actually contains everything you need for a completely functional approach to programming. This article discusses general concepts of functional programming, and illustrates ways of implementing functional techniques in Python.
Porting from Linux on x86 to Linux on Power is usually easy, but developers should be aware of differences that may manifest as compilation, linking, or run-time errors, or performance issues. This article lists those differences, and describes approaches for fixing, improving, or working around them. Awareness of these differences…
DatabasesIBM Power Systems+
Scylla is an open source NoSQL database that is compatible with Apache Cassandra. Scylla offers several key advantages over Cassandra such as scalability and better performance. Scylla was tested with IBM POWER8 processor-based servers and superior throughput was achieved with both database read and write operations. This article describes the…
Artificial IntelligenceIBM Power Systems+
Neural nets may be the future of computing. A good way to understand them is with a puzzle that neural nets can be used to solve. Suppose that you are given 500 characters of code that you know to be C, C++, Java, or Python. Now, construct a program that…
ContainersIBM Power Systems+
This article describes the steps to set up a Mesos/Marathon cluster on OpenPOWER servers.
This article describes the growing relevance of Machine Learning used in various kinds of analytics along with an overview of Deep Learning. It provides an end-to-end process for using Machine Learning and Deep Learning and the options for getting started on IBMB. Power Systems™.
IBM Power SystemsJava+
This article discusses some of the best practices to achieve best performance from applications running in the Liberty profile of the IBM WebSphere Application Server on the IBM Power System S9xx and L922 systems recently made available from IBM
This article can help administrators who need to install Red Hat Enterprise Linux on an IBMB. POWER8™ processor-based system in bare metal mode by comparing the process of installation on an x86 system.
With Filesystem in Userspace (FUSE), you can develop a user space filesystem framework without understanding filesystem internals or learning kernel module programming. Follow this simple, step-by-step guide to install, customize, and enable FUSE and AFS, so you can create your own fully functional filesystem in user space in Linux.
Python made metaprogramming possible, but each Python version has added slightly different -- and not quite compatible -- wrinkles to the way you accomplish metaprogramming tricks. Playing with first-class function objects has long been around, as have techniques for peaking and poking at magic attributes. With version 2.2, Python grew…
Learn how IBM has played, and continues to play, a leading role in the evolution of open source and how we leverage that leadership to deliver world-class offerings and solutions that benefit our customers.
Your guide to LPIC-1 exam-preparation tutorials
Learn how to stand up a Hyperledger Fabric network with Ansible and the Cello project on a single Ubuntu machine.
Learn how to create a model and REST endpoint for object detection using PowerAI Vision.
This article explain techniques to optimize user code using compiler information or runtime information through the auxiliary vector.
In Part 4 of this series, you'll learn how to extend the Spigot server with a plugin that uses Watson cognitive services to add a little science to your game play.
In part 3 of this series, you'll learn how to deploy Docker images to IBM Cloud, and run them as Docker containers that are accessible through the cloud.
In this series, you''ll learn how to use Docker, Eclipse, and IBM Cloud to develop, extend, and host your own Minecraft servers.
This article explains how to migrate an IBM DB2 database from Linux (little endian) to IBM AIX (big endian)
The Yocto Project is an open source project formed with the goal of making embedded Linux development easier and more portable across architectures. This article introduces the project and provides a step-by-step walk through on how to get started.
Linux system calls - we use them every day. But do you know how a system call is performed from user-space to the kernel? Explore the Linux system call interface (SCI), learn how to add new system calls (and alternatives for doing so), and discover utilities related to the SCI.…
Qlik Sense is a business intelligence tool that allows data to be discovered and visualized. Qlik Sense supports Hadoop environments as a data source. Read this article for details about how Qlik Sense was tested to integrate with and visualize data in Hortonworks Data Platform (HDP) on IBM POWER8.
API ManagementIBM LinuxONE+
This tutorial shows how to develop sockets-based networking applications using Python. In this tutorial, you first learn a few Python basics and see why Python makes a good network programming language. Then you move on to the basic sockets features of Python, using a sample chat application as a guide,…
This article enables you to discover numerous tools for porting and tuning applications for Linux on Power- an integrated development environment (IDE), compilers and toolchains, performance and utilization analysis, emulation, instruction timing, high-performance application programming interfaces, and libraries.
Learning how to use the API for OpenSSL -- the best-known open library for secure communication -- can be intimidating, because the documentation is incomplete. Fill in the gaps, and tame the API, with the tips in this article. After setting up a basic connection, see how to use OpenSSL's…
Containers provide lightweight virtualization that lets you isolate processes and resources without the need to provide instruction interpretation mechanisms and other complexities of full virtualization. In this step-by-step tour of the container tools called Linux Containers (LXC), the author introduces you to the tools and shows how to get up…
Use this roadmap to find IBM developerWorks tutorials that help you learn and review basic Linux tasks. And if you're also pursuing professional certification as a Linux system administrator, these tutorials can help you study for the Linux Professional Institute's LPIC-1: Linux Server Professional Certification exam 101 and exam 102.…
Learn how to manage print queues and user print jobs on Linux using CUPS and the LPD compatibility interface. Use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification or to learn for fun.
Learn how to configure mail aliases and mail forwarding for the sendmail program on Linux. Learn about some alternative mail transfer agents. Use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification or to learn for fun.
Learn how to configure the syslog daemon on your Linux system and how to send log output to a central log server or accept log output as a central log server. Learn about the systemd journal subsystem and rsyslog and syslog-ng as alternative logging systems. Use the material in this…
Learn how to set your Linux system clock and synchronize your time with an Internet NTP time server. You can use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification or to learn for fun.
Learn how to use locale and time zone settings to put your Linux system in the right time and place. You can use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification or to learn for fun.
Learn how to manage user and group accounts and the related system files. You can use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification, or to learn for fun.
Learn how to query databases and manipulate data by using basic SQL commands. You can use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification, or to learn for fun.
Learn how to customize existing scripts or write simple new bash scripts using standard shell syntax, looping and control structures, and tests for success or failure. You can use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification, or to learn for…
Learn how to customize your Linux shell environment and write simple bash functions. You can use the material in this tutorial to study for the LPI 102 exam for Linux system administrator certification, or to learn for fun.
Learn the correct location for files under the Filesystem Hierarchy Standard (FHS) on a Linux system and see how to find important files and commands. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or just to explore file…
Learn how to create and manage hard and symbolic links to files on your Linux system. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or just to explore the differences between hard and soft, or symbolic, links and…
Learn to manage file ownership and permissions on your Linux filesystems. Learn about access modes such as suid, sgid, and the sticky bit and how to use them to enhance security. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator…
Learn to set and check disk quotas on your Linux filesystems to prevent individual users from using more space than allowed and to prevent whole filesystems from filling up unexpectedly. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification,…
Learn to mount your Linux filesystems; configure and use removable USB, IEE 1394, or other devices; and properly access floppy disks, CDs, and DVDs. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or just to learn about accessing…
Learn how to check the integrity of your Linux filesystems, monitor free space, and fix simple problems. Use the material in this tutorial to study for the Linux Professional Institute (LPI) 101 exam for Linux system administrator certification -- or just to check your filesystems and keep them in good…
Learn how to create partitions on a disk drive and how to format them for use on a Linux system as swap or data space. Use the material in this tutorial to study for the Linux Professional Institute LPIC-1: Linux Server Professional Certification exam 101, or just to learn about…
Learn how to use the vi editor, found on almost every UNIX and Linux system. You can use the material in this article to study for the LPI 101 exam for Linux system administrator certification, or just to learn for fun.
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