Is there an alternative for the timeout command on Mac OSx. The basic requirement is I am able to run a command for a specified amount of time. E.g: timeout 10 ping google.com This program runs. TimeLooper, brings historical moments to life by transporting the viewer to the past in 360 VR and AR. Step inside immersive and interactive location-based experiences where you can re-live events in a deeply connected and emotional way. Explore iconic moments from history when visiting world herita. This post explains how to get current date and time from command prompt or in a batch file. How to get date and time in a batch file. Below is a sample batch script which gets current date and time.
Overview
Deep neural networks have emerged as the key approach for solving a wide range of complex problems. To provide high performance and energy efficiency to this class of computation and memory-intensive applications, many DNN accelerators have been proposed in recent years. In order to systematically evaluate arbitrary DNN accelerator designs, we need to have an infrastructure that is able to:
Flexibly describe a wide range of architectures. Unlike traditional architectures that have similar architectures but various microarchitectures, DNN accelerators’ architectures vary significantly from one to another. Therefore, the traditional way of using a fixed set of architecture components to describe the design becomes infeasible for describing DNN accelerators. Since being able to describe the architecture is the initial step for any architecture evaluations, it is important for the infrastructure to be able to have the flexibility to describe a wide range of DNN architecture designs.
Find optimal mappings for a wide range of workloads onto the architecture. Unlike traditional architectures that have an ISA that allows a workload to be represented with a single compiled program, each DNN accelerator uniquely exposes many configurable hardware settings and requires the designer to find a way for scheduling operations and moving data for each workload, i.e., find a mapping for each workload. Since different mappings result in widely varying performance and energy efficiency and different workloads have different optimal mappings, finding optimal mappings is essential for evaluating a DNN architecture.
Accurately predict energy for a range of accelerator designs. Since accelerators are designed for different applications (e.g., sparse DNNs vs. dense DNNs), different accelerator design consists of different hardware components. Furthermore, different accelerator designs also implement different hardware optimizations that will result in drastically different energy consumption for the components. Therefore, it is important for the infrastructure to accurately model the energy consumption of all the components involved in the accelerator design space for evaluating a DNN architecture.
Handle a wide range of technologies. Recently, many new technologies have emerged to help improve the performance and energy efficiency of accelerator designs, such as CMOS scaling down to 7nm, the RRAM in-memory computations, and the optical computations. Accelerator designs under different technologies have different performance and energy efficiency even if they have similar architecture and run the same workload under the same mapping. Therefore, to perform fair evaluations of accelerator designs, it is important for the infrastructure to be flexible enough to accurately reflect the technology-dependent costs.
In this tutorial, we will present two integrated tools that enable rapid evaluation of DNN accelerators:
- Mapping exploration with Timeloop [paper] Timeloop uses a concise and unified representation of the key architecture and implementation attributes of DNN accelerators to describe a broad space of hardware architectures. With the aid from accurate energy estimators, Timeloop generates an accurate processing speed and energy efficiency characterization for any given workload through a mapper that finds the best way to schedule operations and stage data on the specified architecture.
- Energy estimation with Accelergy [paper] [website] Accelergy serves as the energy estimator that provides flexible energy estimation to facilitate Timeloop’s energy characterization. Accelergy allows specifications of arbitrary accelerator architecture designs comprised of user-defined design-specific high-level compound components and user-defined low-level primitive components, which can be characterized by third-party energy estimation plug-ins to reflect the technology-dependent characteristics of the design.
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Slides from ISPASS2020 (August 23th, 2020)
Slides from ISCA2020 (May 29th, 2020)
Slides from MICRO2019 (Oct. 12th, 2019)
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Video Recordings
Timeloop/Accelergy Background Lectures
Timeloop/Accelergy Hands-on Exercises
This post explains how to get current date and time from command prompt or in a batch file.
Time Loop Mac Os X
How to get date and time in a batch file
Below is a sample batch script which gets current date and time
Datetime.cmd
When we run the above batch file
Get date from command line
To print today’s date on the command prompt, we can run date /t.
Just running date without any arguments prints the current date and then prompts to enter a new date if the user wants to reset it.
In addition to date command, we also have an environment variable using which we can find today’s date.
How to get only the date in MM/DD/YYYY format?
You may want to exclude the day (like ‘Sun’ in the above example) and print only the date in MM/DD/YYYY format. The below command works for the same.
Example:
Get time from command prompt
Time Loop Mac Os 11
Similar to date command, we have the command time which lets us find the current system time. Some examples below.
As you can see, the command prints the time in different formats. It prints in 12 hour format when /t is added and in 24 hours format without /t
We can also get the current time from environment variables.