Part 8: The 2010 Wilson Research Group Functional Verification Study

Language and Library Trends

This blog is a continuation of a series of blogs, which present the highlights from the 2010 Wilson Research Group Functional Verification Study (for a background on the study, click here).

In my previous blog (Part 7 click here), I focused on some of the 2010 Wilson Research Group findings related to testbench characteristics and simulation strategies. In this blog, I present design and verification language trends, as identified by the Wilson Research Group study.

You might note for some of the language and library data I present, the percentage sums to more than one hundred percent. The reason for this is that some perticipant’s projects use multiple languages and multiple methodologies.

Design Languages

Let’s begin by examining the languages used for design, as shown in Figure 1.  Here, we compare the results for languages used to design FPGAs (in grey) with languages used to design non-FPGAs (in green).

p8-slide1

Figure 1. Languages used for design

Not too surprising, we see that VHDL is the most popular language used for the design of FPGAs, while Verilog and SystemVerilog are the most popular languages used for the design of non-FPGAs.

Figure 2 shows the trends in terms of languages used for design, by comparing the 2007 Far West Research study (in blue) with the 2010 Wilson Research Group study (in green), as well as the projected design language adoption trends within the next twelve months (in purple). Note that the design language adoption is declining for most of the languages with the exception of SystemVerilog whose adoption is increasing.

p8-slide2

Figure 2. Trends in languages used for design

Verification Languages

Next, let’s look at the languages used for verification (that is, languages used to create simulation testbenches). Figure 3 compares the results between FPGA designs (in grey) and non-FPGA designs (in green). p8-slide3

Figure 3. Languages used in verification to create simulation testbenches

And again, it’s not too surprising to see that VHDL is the most popular language used to create verification testbenches for FPGAs, while SystemVerilog  is the most popular language used to create testbenches for non-FPGAs.

Figure 4 shows the trends in terms of languages used to create simulation testbenches by comparing the 2007 Far West Research study (in blue) with the 2010 Wilson Research Group study (in green), as well as the projected language adoption trends within the next twelve months (in purple). Note that verification language adoption is declining for most of the languages with the exception of SystemVerilog whose adoption is increasing.

p8-slide4

Figure 4. Trends in languages used in verification to create simulation testbenches

Now, let’s look at methodology and class library adoption. Figure 5 shows the future trends in terms of methodology and class library adoption by comparing the 2010 Wilson Research Group study (in green) with the projected adoption trends within the next twelve months (in purple). Previous studies did not include data on methodology and class library adoption, so we are unable to show previous trends.

survey-blog-part8

Figure 5. Methodology and class library future trends

The study indicates that the only methodology adoption projected to grow in the next twelve months are OVM and UVM. 

Assertion Languages and Libraries

Finally, let’s examine assertion language and library adoption, as shown in Figure 6.  Here, we compare the results for FPGA designs (in grey) and non-FPGA designs (in green).

p8-slide6

Figure 6. Assertion language and library adoption

SystemVerilog Assertions (SVA) is the most popular assertion language used for both FPGA and non-FPGA designs.

Figure 7 shows the trends in terms assertion language and library adoption by comparing the 2007 Far West Research study (in blue) with the 2010 Wilson Research Group study (in green), as well as the projected adoption trends within the next twelve months (in purple). Note that the adoption of most of the assertion languages is declining, with the exception of SVA whose adoption is increasing.

p8-slide7

Figure 7. Trends in assertion language and library adoption

In my next blog (click here), I plan to focus on the adoption of various verification technologies and techniques used in the industry, as identified by the 2010 Wilson Research Group study.

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6 comments on this post | ↓ Add Your Own

Commented on May 15, 2011 at 12:00 am
By SX Yang

Very good! Can you focus on FPGA different with non-FPGA and how to use VHDL language design or develop? many thanks and best regards!

Commented on May 15, 2011 at 12:41 pm
By Harry Foster

Hi, I can extract the data with a focus on either combined FPGA and non-FPGA, or FPGA only, or non-FPGA only. I will be presenting a lot of the data in this series of blogs with different views. Thanks!

Commented on May 18, 2011 at 9:55 am
By System-Level Design » Blog Archive » Blog Review: May 18

[…] Harry Foster pitches in with part eight of his verification study, the part focused on design and verification […]

[…] research reports on the popularity of one language or format the past several months.  In his last blog, he discussed which of the design and verification languages are ranked high and those, well, not […]

[…] Part 8 – Language and Library Trends […]

Commented on September 11, 2012 at 1:52 pm
By OVM Gets Connected « Verification Horizons BLOG

[…] thriving OVM community is of no surprise.  Last year, Harry Foster blogged about research on the use and adoption of verification methodologies.  The research was done after […]

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