Personal computing discussed

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by Stranger
Wed Jan 04, 2017 9:29 pm
Forum: Developer's Den
Topic: This is why when people say javascript, I groan
Replies: 26
Views: 11765

Re: This is why when people say javascript, I groan

I'd argue that javascript is a thousand times better than python which people love to use all over the engineering and data science worlds.  I might be a bit bitter from having to rewrite all kinds of garbage python.  If you include modern variants of js such as typescript it's a million times bette...
by Stranger
Tue Dec 08, 2015 2:24 am
Forum: The Back Porch
Topic: How does super-discounted shiping work?
Replies: 8
Views: 6012

Re: How does super-discounted shiping work?

"Then Amazon Prime came around and beat them all." Amazon is exceedingly good at logistics. Their advantages comes down to this... 1) massive buying power with all of the carriers ups fedex usps etc 2) A distribution system that is designed to reduce the number of hops. In many cases items...
by Stranger
Tue Oct 20, 2015 3:28 pm
Forum: Developer's Den
Topic: Worst code ever
Replies: 64
Views: 19692

Re: Worst code ever

I think most of what keeps FORTRAN going is inertia. Tons of legacy code out there in the form of libraries and applications which have been written over the decades. FORTRAN is to scientific computing what COBOL is to the banking and insurance industries. I can definitely relate to that. a long wh...
by Stranger
Tue Oct 06, 2015 6:44 pm
Forum: Developer's Den
Topic: Need Some Free Domain/Hosting Suggestions
Replies: 13
Views: 11983

Re: Need Some Free Domain/Hosting Suggestions

Hi Guys, I have a young friend who wants to get into web programming and was looking for a site that had basic free hosting plans. He probably will want a domain as well, but I am not sure you can get domains for free, but I know many places offer free hosting of pages, albeit with less services th...
by Stranger
Tue Oct 06, 2015 6:31 pm
Forum: Developer's Den
Topic: .NET compiler targeting
Replies: 4
Views: 6249

Re: .NET compiler targeting

Dotnet 4.6 is installed on the server. If I change targetFramework to 4.6, is there going to be a miraculous improvement in the performance of that website (from using the brand new RyuJIT in v4.6) ? Likely not unless you do some rewriting. Are you using the ASYNC keyword? also are you sure you are...
by Stranger
Sun Aug 23, 2015 2:03 am
Forum: Developer's Den
Topic: Python practice programs
Replies: 35
Views: 10162

Re: Python practice programs

I'm joining in this party late but i would suggest taking a look at Amazon's career cup interview questions. http://www.careercup.com/page?pid=amazon-interview-questions&sort=votes Not only are they a step up from hello world questions. They will also get you a job! I would also suggest practici...
by Stranger
Thu Sep 18, 2014 9:55 am
Forum: Developer's Den
Topic: Website monitoring
Replies: 11
Views: 8547

Re: Website monitoring

My Company uses http://www.monitis.com/ but its a bit expensive but works. Its nice for more complicated testing. for example if you need to check to make sure your website is available around the globe so that you can test your cdn. Another option is using an automated task runner like TeamCity. yo...
by Stranger
Fri Mar 07, 2014 6:15 pm
Forum: Developer's Den
Topic: MSSQL - sums grouped by attributes
Replies: 9
Views: 29602

Re: MSSQL - sums grouped by attributes

it sounds like you're trying to attempt a pivot. but your description is a bit confusing. you might want to specify the table headers before and after

http://technet.microsoft.com/en-us/libr ... (v=sql.105).aspx
by Stranger
Fri Feb 01, 2013 3:08 pm
Forum: Developer's Den
Topic: Fortran - Integrating Functions
Replies: 3
Views: 2906

Re: Fortran - Integrating Functions

I've only briefly touched on Fortran and it was an... interesting experience.

viewtopic.php?f=20&t=83633

What kind of work will you be doing? I've done a bit of Computational chemistry type of stuff.
by Stranger
Fri Jan 11, 2013 8:10 pm
Forum: Developer's Den
Topic: Good News To Report
Replies: 2
Views: 2523

Good News To Report

After my whirlwind tour of three letter acronyms that has been my last few months transitioning from chemistry to software development, I am now Gainfully employed! I just wanted to thank everyone for the comments earlier. I'm employed by a consulting firm in the Chicago area. for historical referen...
by Stranger
Thu Dec 13, 2012 2:54 am
Forum: System Builders Anonymous
Topic: Low cost workstation build advice
Replies: 9
Views: 3231

Re: Low cost workstation build advice

Looking over what you've got it sounds totally reasonable. I would suggest double checking with whatever packages you use to see if anyof them benefit from a graphics card (I doubt it). The only thing i think you could optimize to get a cheaper case and spend the money on more ram. I always wanted t...
by Stranger
Wed Dec 12, 2012 5:28 pm
Forum: System Builders Anonymous
Topic: Low cost workstation build advice
Replies: 9
Views: 3231

Re: Low cost workstation build advice

Maybe I'm not seeing it but how are you getting up to $1500. got your price list typed out? Even TRs own sweet spot system with a graphics card is only 1K. In my opinion you can get a decent video card for 100 bucks and if you're already spending 1.5k you might as well throw in a passable videocard....
by Stranger
Wed Dec 12, 2012 3:15 am
Forum: Motherboards, Chipsets, & RAM
Topic: Lower RAM Performance with Less DIMMs?
Replies: 9
Views: 4178

Re: Lower RAM Performance with Less DIMMs?

I'm guessing you have both sticks in one channel rather than one stick in one channel and the other in the other.
by Stranger
Wed Oct 31, 2012 10:05 pm
Forum: Developer's Den
Topic: Google Interview Question: A fully Multithreaded Approach
Replies: 30
Views: 12808

Re: Google Interview Question: A fully Multithreaded Approa

New update. Now that I've re wrote the whole thing I can encode 1million ints into 1MB in about 5.49 seconds on 1 1.7GHz bobcat core. so with 1/4th the cores and 1/2 the processor speed its 9x as fast(roughly a 72X speedup). Plus with the new encoding scheme it should be much more resilient to adver...
by Stranger
Wed Oct 31, 2012 12:46 pm
Forum: Developer's Den
Topic: Google Interview Question: A fully Multithreaded Approach
Replies: 30
Views: 12808

Re: Google Interview Question: A fully Multithreaded Approa

Alright I'm going to re write my code and I'm going todo essentially the same as above but this time I'm going to encorporate a sorted prebuffer and instead of a single flat array I'll use a circular buffer. the new merge function will work as follows. First the prebuffer is sorted next a function w...
by Stranger
Tue Oct 30, 2012 6:14 pm
Forum: Developer's Den
Topic: Google Interview Question: A fully Multithreaded Approach
Replies: 30
Views: 12808

Re: Google Interview Question: A fully Multithreaded Approa

Maybe I'm missing the point, but can you make an array of bytes and use the address (index) to encode the number? You can then write 1s or 0s to that location if that number is found. So for instance, if we see the number 576, we make array[576]=1. unfortunately the range of numbers makes this type...
by Stranger
Tue Oct 30, 2012 1:19 pm
Forum: Developer's Den
Topic: Google Interview Question: A fully Multithreaded Approach
Replies: 30
Views: 12808

Re: Google Interview Question: A fully Multithreaded Approa

Your differential encoding scheme is clever, but I think it fails if given adversarial input. For example, what if the given numbers are "1, 99999999, 1, 99999999, ...."? Since you'll need 4 bytes to encode each difference, the encoded set won't fit in 1 MB. In my implementation I sort th...
by Stranger
Mon Oct 29, 2012 2:42 pm
Forum: Developer's Den
Topic: Google Interview Question: A fully Multithreaded Approach
Replies: 30
Views: 12808

Re: Google Interview Question: A fully Multithreaded Approa

So I'm considering rewriting this project to improve performance and to make the data structure a tiny bit more compressed and to make the insertions closer to Log(n) rather than n. I'm considering replacing the bins with something a bit more elegant. So I'll start with a giant array instead of a bu...
by Stranger
Sun Oct 28, 2012 8:26 pm
Forum: Developer's Den
Topic: Considering A Career Change to Software Development
Replies: 18
Views: 7520

Re: Considering A Career Change to Software Development

That said, HPC isn't limited to just the national labs any more....Medical research, oil/gas exploration, Hollywood special effects, financial industry (to name a few). Anywhere that people need lots of numbers crunched really fast. Yeah I'm definitely being myopic at the moment. maybe i just need ...
by Stranger
Sun Oct 28, 2012 8:21 pm
Forum: Developer's Den
Topic: Google Interview Question: A fully Multithreaded Approach
Replies: 30
Views: 12808

Re: Google Interview Question: A fully Multithreaded Approa

Most small microcontrollers are in fact single-core (and have clock speeds much lower than a typical desktop CPU). That said, the problem does not state whether the memory restriction is due to running on an embedded system, or just a desire to optimize memory usage within a larger system. That was...
by Stranger
Sun Oct 28, 2012 7:42 pm
Forum: Developer's Den
Topic: Considering A Career Change to Software Development
Replies: 18
Views: 7520

Re: Considering A Career Change to Software Development

Thanks everyone for taking the time to reply. I had a background in web development (bachelors) and eventually I saw that web 'designers' were largely a dime a dozen, and programming for the web was exploding (still is). I would think that with your scientific background you could find yourself a re...
by Stranger
Sun Oct 28, 2012 6:49 pm
Forum: Developer's Den
Topic: Google Interview Question: A fully Multithreaded Approach
Replies: 30
Views: 12808

Google Interview Question: A fully Multithreaded Approach

Since I've been considering getting into software development I've recently been working on different interview questions. I found this one posted on reddit and I liked it so much I decided to implement it in code. Here's my train of thoughts that lead to my solution. I've been trying to refine my s...
by Stranger
Fri Oct 26, 2012 2:04 pm
Forum: Developer's Den
Topic: Considering A Career Change to Software Development
Replies: 18
Views: 7520

Considering A Career Change to Software Development

So I'm a chemist who is getting ready to finish up his masters in Chemistry and I've been considering trying to get into software development due to a combination of a latent interest in programing and the extremely stagnant job market for Chemists. I was wondering if anyone had any advice for someo...
by Stranger
Tue Sep 25, 2012 3:30 pm
Forum: Developer's Den
Topic: Fortran will be the Death of me
Replies: 30
Views: 14659

Re: Fortran will be the Death of me

Thanks for the help every one : ) I would have been going in circles for hours without it : )
by Stranger
Tue Sep 25, 2012 2:51 am
Forum: Developer's Den
Topic: Fortran will be the Death of me
Replies: 30
Views: 14659

Re: Fortran will be the Death of me

To ensure that this program isn't lost to the world again I'm going to post the output Source Code(compiled with g77 on windows 7) C********************************************************************* C C MINIMAL BASIS STO-03 CALCULATION ON HEH+ C C THIS IS A LITTLE DUMMY MAIN PROGRAM WHICH CALLS H...
by Stranger
Tue Sep 25, 2012 2:41 am
Forum: Developer's Den
Topic: Fortran will be the Death of me
Replies: 30
Views: 14659

Re: Fortran will be the Death of me

holy **** I'm a FORTRAN programer now. I feel like I went spelunking into the long lost depths of computing pasts. THE G ARRAY 1 2 1 0.0000000000E+00 0.0000000000E+00 2 0.0000000000E+00 0.0000000000E+00 THE F ARRAY 1 2 1 -0.2379140570E+01 -0.1277051444E+01 2 -0.1277051444E+01 -0.1691423286E+01 THE F...
by Stranger
Tue Sep 25, 2012 2:32 am
Forum: Developer's Den
Topic: Fortran will be the Death of me
Replies: 30
Views: 14659

Re: Fortran will be the Death of me

renaming the error function DERF to DERFOTHER cuts the list down to.... c:\Fort99\G77\bin>g77.exe -Wall RHFV2.f RHFV2.f: In subroutine `scf': RHFV2.f:429: warning: $ F10.6,/) ^ Missing comma in FORMAT statement at (^) RHFV2.f:355: warning: unused variable `pi' c:\Fort99\G77\bin> I think this means i...
by Stranger
Tue Sep 25, 2012 2:29 am
Forum: Developer's Den
Topic: Fortran will be the Death of me
Replies: 30
Views: 14659

Re: Fortran will be the Death of me

I think this whole thing is going to drive me crazy : ) CALL MATOUT(S,2,2,2,2,4HS) needed to be.... CALL MATOUT(S,2,2,2,2,4HS ) why this works I have no earthly idea... So here's what I'm down to now... c:\Fort99\G77\bin>g77.exe -Wall RHFV2.f RHFV2.f:187: warning: F0=DSQRT(PI/ARG)*DERF(DSQRT(ARG))/2...
by Stranger
Tue Sep 25, 2012 1:46 am
Forum: Developer's Den
Topic: Fortran will be the Death of me
Replies: 30
Views: 14659

Re: Fortran will be the Death of me

alright after spending some personal time with the text editor I've got... C********************************************************************* C C MINIMAL BASIS STO-03 CALCULATION ON HEH+ C C THIS IS A LITTLE DUMMY MAIN PROGRAM WHICH CALLS HFCALC C C APPENDIX B: TWO-ELECTRON SELF-CONSISTENT-FIELD...
by Stranger
Mon Sep 24, 2012 10:35 pm
Forum: Developer's Den
Topic: Fortran will be the Death of me
Replies: 30
Views: 14659

Re: Fortran will be the Death of me

so is the first character supposed to be a space? by column to do mean something like a character?(i'm guessing this means there is a specific number of columns on a line) It unfortunately came to me mangled. I had tried to fix it with a tab. I found a random ancient fortran compiler g77 that im gue...
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