Activity for Leo M.
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Leo M. posted a comment on discussion Open Discussion
Are the Windows 64b binaries for QUCS 0.0.20 RC2 available?
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I found the Win 64b binary incorporating the fix for parsing large S-parameters files. It did resolve the problem. I found the binary in: https://github.com/Qucs/qucs/pull/791 The 64b binary runs much faster than the official 0.0.19 32b binary. Here is a quick run time benchmark with a schematic with 13 ports and 13251 frequencies data point: Win 32b is 160 sec Win 64b is 38 sec OSX 64b is 28 sec The run time of the new 64b binary is now more inline with run time from ADS. Thanks a lot
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I used the pre-compiled package for Windows and OsX to do the benchmark. I did not try to compile the source code. Most of my experience with the Win QUCS pre-compiled version. In order to check for the overflow in parsing S-parameters matrix, I decided to install QUCS executable on my Mac. Problem is the same on Win and OsX. When running same simulations on Mac, I was myself surprized by the speed of execution difference. It is not only few percent, it is 700 to 800% faster! My guess: maybe the...
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When I simulate a circuit with a large S-parameters file (13x13x13251), I get the error message "Memory exhausted". I think the error come from source code filename PARSE_TOUCHSTONE.CPP, yyoverflow with YYMAXDEPTH 1000000 Another thing that I noticed, on similar machine, simulations runs about 7 to 8 times faster on Mac OsX (64b) than PC Win10 (64b). Thanks
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Equation Defined RF Device, S parameters is always set to Z=50 Ohms
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