Blitz Support :

Date view	Thread view	Subject view	Author view

From: Will Bateman (will_at_[hidden])
Date: 2004-09-18 11:08:00

Next message: fredj_at_[hidden]: "[Blitz-support] Blitz with Microsoft's VS .NET 2003 C++"
Previous message: Julian Cummings: "Re: [Blitz-support] interlaceArrays broken"

Hi,

What happened to the good stuff you did below. It doesn=B9t appear to be in
release 0.7..

Also where can I get at you VTx libraries.

Thanks

Will

If Todd, or Julian Cummings already sent me a email about this, please
resend it to mdsuresh_at_[hidden] I have lost access to my
yahoo account.

please remove REMOVEME from my email address.

Anyways guys, i have forked blitz a little and made a lot of controversial
changes. Btw, these are far from official.

You can find these changes at

http://mdsuresh.tripod.com/blitz-0.6.x.zip

Btw, i have only got it compiling. [with g++ 2.95, Intel, Cygwin B19,
WinXP ] I still have a lot of bugs to hunt down and fix. In a few days, i
will get them working. Here's the pilot compilability tester .

http://mdsuresh.tripod.com/func.cpp

Anyways, here are some important changes i made

First thing is Range

Range(0, 5,2) is considered a valid range and wont invoke an assertion.
Range(0,5,2) =3D 0,2,4
Range(0,-1,1) is a null range and wont invoke an assertion
IF Array<int,2> A(4,5)
A(Range(0,-1,1), 2) is a null slice

Slicing [ partial ordering]

Suppose Array<int,3> A(3,4,5)

and u do A( Range(2,3) , 1) --> this is same as A( Range(2,3) , 1,
Range:all())

and its rank is 2

I added some classes being a matlab phenatic.

lhs_ and rhs_ and the relavent function lhs and rhs

for example, SVDs can return multiple values using rhs() .

int a; float b; char c;

lhs( a, b, c) =3D rhs( int(1) , float(0.5) , '1')

would set a,b,c to their appropriate values.

Morever, suppose

Array<float, 1> b;

lhs( a, b, c) =3D rhs( int(1) , Array<float,1>(10) , '1')

would be same as

a =3D 1; b=3D Array<float,1>(10); c =3D '1';

whereas

lhs( a, ref(b), c) =3D rhs( int(1) , Array<float,1>(10) , '1')

would be
a =3D 1; b.reference(Array<float,1>(10)); c =3D '1';

Then, i changed list initialzers for 2-d and 1-d matrices

Array<int, 2> a(4,4);
Array<int,1> b(3);
Array<int,2> c(2,4);

b =3D 3;
c =3D 5;
a =3D b, 1,
c,
10,9,8,7;

would set a equal to

a =3D 3,3,3,1
      5,5,5,5
      5,5,5,5
      10,9,8,7

And i added some algorithms to blitz. I have named them Vectorized Template
eXtenstions, or otherwise _VTx . As the name says, it will exploit
parallelism wherever possible. And most functions are rip off of the
fortran -90 version of Numerical Recipies.

Anyways, look over. And something really really bugs u, please email me at
mdsuresh_at_REMOVEMErediffmail.com. (Remember to remove REMOVEME). Mostly,
it's still in prerelease mode. Your opnions are very important now, since
it's the right time to shape the library.

cheers
Suresh

--B_3178371821_4835823
Content-type: text/html; charset="ISO-8859-1"
Content-transfer-encoding: quoted-printable

<HTML>
<HEAD>
<TITLE>Where is Blitz going.</TITLE>
</HEAD>
<BODY>
Hi, 
 
What happened to the good stuff you did below. It doesn’t appear to b=
e in release 0.7.. 
 
Also where can I get at you VTx libraries. 
 
Thanks 
 
Will 
 
 
If Todd, or Julian Cummings already sent me a email about this, please 
resend it to mdsuresh_at_[hidden]   I have lost access=
to my 
yahoo account. 
 
please remove REMOVEME from my email address. 
 
 
Anyways guys, i have forked blitz a little and made a lot of controversial<=
BR>
changes. Btw, these are far from official. 
 
You can find these changes at 
 
<a
href=3D"http://mdsuresh.tripod.com/blitz-0.6.x.zip">=
<http://mdsuresh.tripod.com/blitz-0.6.x.zip>
http://mdsuresh.tripod.com/blitz-0.6.x.zip
<http://mdsuresh.tripod.com/blitz-0.6.x.zip> > 
 
Btw, i have only got it compiling. [with g++ 2.95, Intel, Cygwin B19, 
WinXP ] I still have a lot of bugs to hunt down and fix. In a few days, i<B=
R>
will get them working. Here's the pilot compilability tester . 
 
<a
href=3D"http://mdsuresh.tripod.com/func.cpp">http://=
mdsuresh.tripod.com/func.cpp</a> 
 
Anyways, here are some important changes i made 
 
First thing is Range 
 
Range(0, 5,2) is considered a valid range and wont invoke an assertion. 
Range(0,5,2) =3D 0,2,4 
Range(0,-1,1) is a null range and wont invoke an assertion 
IF Array<int,2> A(4,5) 
A(Range(0,-1,1), 2)  is a  null slice 
 
Slicing [ partial ordering] 
 
Suppose Array<int,3> A(3,4,5) 
 
and u do A( Range(2,3) , 1) --> this is same as A( Range(2,3)  , 1,=
 
Range:all()) 
 
and its rank is 2 
 
I added some classes being a matlab phenatic. 
 
lhs_ and rhs_ and the relavent function lhs and rhs 
 
for example, SVDs can return multiple values using rhs() . 
 
int a; float b; char c; 
 
lhs( a, b, c) =3D rhs( int(1) , float(0.5) , '1') 
 
would set a,b,c to their appropriate values. 
 
Morever, suppose 
 
Array<float, 1>  b; 
 
lhs( a, b, c) =3D rhs( int(1) , Array<float,1>(10) , '1') 
 
would be same as 
 
a =3D 1; b=3D Array<float,1>(10); c =3D '1'; 
 
whereas 
 
lhs( a, ref(b), c) =3D rhs( int(1) , Array<float,1>(10) , '1') 
 
would be 
a =3D 1; b.reference(Array<float,1>(10)); c =3D '1'; 
 
 
Then, i changed list initialzers for 2-d and 1-d matrices 
 
Array<int, 2> a(4,4); 
Array<int,1>  b(3); 
Array<int,2>  c(2,4); 
 
b =3D 3; 
c =3D 5; 
a =3D b, 1, 
      c, 
      10,9,8,7; 
 
would set a equal to 
 
a =3D 3,3,3,1 
      5,5,5,5 
      5,5,5,5 
      10,9,8,7 
 
And i added some algorithms to blitz. I have named them Vectorized Template=
 
eXtenstions, or otherwise _VTx . As the name says, it will exploit 
parallelism wherever possible. And most functions are rip off of the 
fortran -90 version of Numerical Recipies. 
 
Anyways, look over. And something really really bugs u, please email me at<=
BR>
mdsuresh_at_REMOVEMErediffmail.com.  (Remember to remove REMOVEME). Mostl=
y, 
it's still in prerelease mode. Your opnions are very important now, since<B=
R>
it's the right time to shape the library. 
 
cheers 
Suresh
</BODY>
</HTML>

text/html attachment: attachment

Next message: fredj_at_[hidden]: "[Blitz-support] Blitz with Microsoft's VS .NET 2003 C++"
Previous message: Julian Cummings: "Re: [Blitz-support] interlaceArrays broken"

Date view	Thread view	Subject view	Author view