On Dec 8, 4:56 pm, Jon Harrop <[EMAIL PROTECTED]> wrote: > Xah Lee wrote: > > A moron, wrote: > > > You failed the challenge that you were given. > > > you didn't give me a challenge. > > Thomas gave you the challenge: > > "What I want in return is you to execute and time Dr. Harrop's original > code, posting the results to this thread... By Dr. Harrop's original code, > I specifically mean the code he posted to this thread. I've pasted it below > for clarity.". > > Thomas even quoted my code verbatim to make his requirements totally > unambiguous. Note the parameters [9, 512, 4] in the last line that he and I > both gave: > > AbsoluteTiming[Export["image.pgm", [EMAIL PROTECTED]@Main[9, 512, 4]]] > > You have not posted timings of that, let alone optimized it. So you failed.
The first parameter to your Main specifies some kinda recursively stacked spheres in the rendered image. The second parameter is the width and height of the pixels in the rendered image. I tried to run them but my computer went 100% cpu and after i recall 5 min its still going. So, i reduced your input. In the end, with reduced input, it shows my code is 5 times faster (running Mathematica v4 on OS X 10.4.x with PPC 1.9 GHz), and on the other guy's computer with Mathematica 6 he says it's twice as fast. Given your code's nature, it is reasonably to assume that with your original input my code would still be faster than yours. You claim it is not or that it is perhaps just slightly faster? It is possible you are right. I don't want to spend the energy to run your code and my code and possible hog my computer for hours or perhaps days. As i said, your recursive Intersect is very badly written Mathematica code. It might even start memory swapping. Also, all you did is talking bullshit. Thomas actually is the one took my challenge to you and gave me $20 to prove my argument to YOU. His requirement, after the payment, is actually, i quote: «Alright, I've sent $20. The only reason I would request a refund is if you don't do anything. As long as you improve the code as you've described and post the results, I'll be satisfied. If the improvements you've described don't result in better performance, that's OK.» He haven't posted since nor emailed me. It is reasonable to assume he is satisfied as far as his payment to me to see my code goes. You, kept on babbling. Now you say that the input is different. Fine. How long does that input actually take on your computer? If days, i'm sorry i cannot run your toy code on my computer for days. If in few hours, i can then run the code overnight, and if necessary, give you another version that will be faster with your given input to shut you the fuck up. However, there's cost to me. What do i get to do your homework? It is possible, that if i spend the energy and time to do this, then you again refuse to acknowledge it, or kept on complaining about something else. You see, newsgroup is the bedrock of bullshit. You bullshit, he bullshits, everybody brags and bullshit because there is no stake. I want sincerity and responsibility backed up, with for example paypal deposits. You kept on bullshitting, Thomas gave me $20 and i produced a code that reasonably demonstrated at least how unprofessional your Mathematica code was. Here's the deal. Pay me $20, then i'll creat a version of Mathematica code that has the same input as yours. Your input is Main[9, 512, 4], as i have exposed, your use of interger in the last part for numerical computation is Mathematica incompetence. You didn't acknowledge even this. I'll give a version of Mathematica with input Main[9, 512, 4.] that will run faster than yours. If not, money back guaranteed. Also, pay me $300, then i can produce a Mathematica version no more than 10 times slower than your OCaml code, this should be a 70000 times improvement according to you. Again, money back guarantee. If i don't receive $20 or $300, this will be my last post to you in this thread. You are just a bullshitter. O wait... my code with Main[9, 512, 4.] and other numerical changes already makes your program run faster regardless of the input size. What a motherfucking bullshit you are. Scratch the $20. The $300 challenge still stands firm. Xah ∑ http://xahlee.org/ ☄ -- http://mail.python.org/mailman/listinfo/python-list
