Parallel computing

Parallel computing is a type of computation in which many calculations or the execution of processes are carried out simultaneously.Large problems can often be divided into smaller ones, which can then be solved at the same time. There are several different forms of parallel computing: bit-levelinstruction-leveldata, and task parallelism. Parallelism has long been employed in high-performance computing, but it’s gaining broader interest due to the physical constraints preventing frequency scaling.As power consumption (and consequently heat generation) by computers has become a concern in recent years,parallel computing has become the dominant paradigm in computer architecture, mainly in the form of multi-core processors.

parallel-computing Parallel computing

Parallel computing is closely related to concurrent computing—they are frequently used together, and often conflated, though the two are distinct: it is possible to have parallelism without concurrency (such as bit-level parallelism), and concurrency without parallelism (such as multitasking by time-sharing on a single-core CPU).]In parallel computing, a computational task is typically broken down into several, often many, very similar sub tasks that can be processed independently and whose results are combined afterwards, upon completion. In contrast, in concurrent computing, the various processes often do not address related tasks; when they do, as is typical in distributed computing, the separate tasks may have a varied nature and often require some inter-process communication during execution.

Parallel computers can be roughly classified according to the level at which the hardware supports parallelism, with multi-core and multi-processor computers having multiple processing elements within a single machine, while clustersMPPs, and grids use multiple computers to work on the same task. Specialized parallel computer architectures are sometimes used alongside traditional processors, for accelerating specific tasks.

In some cases parallelism is transparent to the programmer, such as in bit-level or instruction-level parallelism, but explicitly parallel algorithms, particularly those that use concurrency, are more difficult to write than sequential ones,because concurrency introduces several new classes of potential software bugs, of which race conditions are the most common. Communication and synchronization between the different sub tasks are typically some of the greatest obstacles to getting good parallel program performance.

Importance of Employee Cyber-security Training

Recent reports from Trust-wave reveal that despite companies spending $96 billion on cyber security initiatives this year, 100 percent of all web applications continue to be vulnerable to attacks. To protect your company’s data from threats, it’s increasingly critical that employee cyber security training takes place in the workplace.

employee-cyber-security-training-image-300x188 Importance of Employee Cyber-security Training

Tips for Employee Cyber-security Training

Cyber security for your company starts with your employees. Utilize the following tips to secure your data and conduct employee cyber security training.

1. Include All Staff Members

No one is immune to hackers and cybersecurity attacks, so ensure all team members complete training. Don’t forget to include upper management, as well as IT department staff.

2. Review Signs of an Attack

One of the most important lessons in cybersecurity is recognizing signs of an attack. Review common signs that a device or network is under attack such as:

  • Systems running slowly
  • Abnormal activity on the corporate firewall
  • Access logs showing unusual login times and locations
  • Frequent pop-ups
  • Device freezing or crashing

These are just a few ways that attacks may be happening in your office. Encourage employees to alert you if they notice any of the above, or other unusual autonomous activity.

NOTE: Ensure employees that there’s no such thing as a silly question. It’s better to report a problem and it be a false alarm, than to go without reporting a problem and compromise your entire company network.

3. Explain Password Policies

One simple way that employees can safeguard their information, as well as company data, is using secure passwords. An employee’s password should contain a combination of various letters, symbols, numbers and capitalizations. No two programs or websites should have the same login credentials.

As you can imagine, remembering all of these long, unique passwords can be difficult. Consider investing in password management software like Last Pass for your business to help employees keep track of their secure passwords.

4. Go Over Preventative Measures

In addition to explaining the importance of password management, your employee cybersecurity training should include information on measures to prevent attacks and security breaches altogether. Provide your employees with the following tips to prevent attacks:

  • When accessing company data remotely, implement multifactor authentication.
  • Keep your operating systems, browsers, and antivirus and security software up-to-date.
  • Regularly update your passwords.
  • Never open attachments or click on links from an unknown sender.
  • Never share sensitive information via email.
  • Back up critical business files and data using cloud services

For more tips on preventing cyber attacks, utilize the Department of Homeland Security’s Stop.Think.Connect. for small and mid-size business resources. Stop.Think.Connect. is a public awareness campaign with the goal of educating users on cyber threats.

By helping employees understand the threat landscape and how to prevent network vulnerabilities, you are able to make cyber security a part of your company culture. For more information on how to protect your business from cyber attacks and to conduct employee cyber security training, contact your nearest Computer Troubleshooters office.