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Xilinx 8.2i manual Halting PAR

Models: 8.2i

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Chapter 9: PAR

R

A few of the entries are described as follows:

♦jupiter has been running job high_high_10 for approximately 2 1/2 hours.

♦mars has been running job high_high_11 for approximately 2 1/2 hours.

♦mercury has been deactivated by the user with the Stop using a node option or it was not an existing node or it was not running. Nodes are pinged to see if they exist and are running before attempting to start a job.

♦neptune has been halted immediately with job resubmission. The Turns Engine is waiting for the job to terminate. Once this happens the status is changed to not available.

There is also a Job Finishing status. This appears if the Turns Engine has been instructed to halt the job at the next checkpoint.

Halting PAR

You need to set the interrupt character by entering stty intr ^V^C in the .login file or .cshrc file.

Note: You cannot halt PAR with Ctrl+C if you do not have Ctrl+C set as the interrupt character. To halt a PAR operation, enter Ctrl+C. In a few seconds, the following message appears:

CNTRL-C interrupt detected.

Please choose one of the following options:

1.Ignore interrupt and continue processing.

2.Exit program normally at next checkpoint. This saves the best results so far after concluding the current processing,

3.Exit program immediately.

4.Display Failing Timespec Summary.

5.Cancel the current job and move to the next one at the next check point.

Enter choice -->

If you have no failing time specifications or are not using the –n option, Options 4 and 5 display as follows.

4.Display Failing Timespec Summary. (Not applicable: Data not available)

5.Cancel the current job and move to the next one at the next check point.

(Not applicable: Not a multi-run job.)

You then select one of the five options shown on the screen. The description of the options are as follows:

•Option 1—this option causes PAR to continue operating as before the interruption. PAR then runs to completion.

•Option 2—this option continues the current place/route iteration until one of the following check points.

♦After placement

♦After the current routing phase

The system then exits the PAR run and saves an intermediate output file containing the results up to the check point.

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Xilinx 8.2i manual Halting PAR
Page 193 Page 195

8.2i specifications

Xilinx 8.2i is a significant version of the Xilinx ISE (Integrated Software Environment) that emerged in the early 2000s, marking an important milestone in the world of FPGA (Field-Programmable Gate Array) development. This version introduced a slew of advanced features, technologies, and characteristics that made it an indispensable tool for engineers and developers in designing, simulating, and implementing digital circuits.

One of the standout features of Xilinx 8.2i is its enhanced design entry capabilities. This version supports multiple design entry methods, including schematic entry, VHDL, and Verilog HDL, giving engineers the flexibility to choose their preferred approach. The integrated environment provides user-friendly graphical interfaces, making it accessible for both novice and experienced users.

Xilinx 8.2i's synthesis tools have been improved to enable more efficient design compilation and optimization. The new algorithms used in this version facilitate faster synthesis times while reducing power consumption and improving performance. Furthermore, it features support for advanced FPGA architectures, which allows for the implementation of more complex designs with greater efficiency.

The implementation tools in Xilinx 8.2i include advanced place and route capabilities, utilizing state-of-the-art algorithms for optimized resource usage. These tools enable designers to make better use of FPGA resources, ensuring that designs fit within the constraints of the target device while maximizing performance.

Another key characteristic of Xilinx 8.2i is its extensive support for various Xilinx devices such as the Spartan, Virtex, and CoolRunner series. This compatibility ensures that developers can leverage the powerful features of these FPGA families, including high-speed transceivers and DSP slices.

Xilinx 8.2i also places a strong emphasis on simulation and verification. The version integrates with various simulation tools, allowing for thorough testing of the designs before implementation. This reduces the risk of errors and ensures that the final product meets specifications.

In addition, this version includes support for design constraints, enabling engineers to specify timing, area, and other critical design parameters. By accommodating constraints, Xilinx 8.2i helps in achieving reliable and efficient designs tailored to project needs.

In summary, Xilinx 8.2i is a robust software development tool that enhances the design process for FPGAs. Its comprehensive features, including multiple design entry options, advanced synthesis and implementation tools, extensive device support, and strong simulation capabilities, make it a valuable resource for engineers and developers striving for innovation in digital design.