On 26 Jun 2014, at 02:48, stepharo <stepharo@free.fr> wrote:

> Hi hernan
> 
> Which image?
> What did you loaded?
> Can you reproduce it?
- which vm? (CogVM 4.0.0 does not exist or is really old)
- which OS? 

>> Can someone explain what does it mean or why it happens?
>> Is that a common scenario for you?
>> 
>> I am measuring execution time for big matrices in CogVM 4.0.0. Image is unresponsive.
>> 
>> Cheers,
>> 
>> Hernán
>> 
> 
> 

he, you are trying to open a tree with 1000 columns and 10000 rows. that will never work, not like that. Esteban On 26 Jun 2014, at 09:45, Hernán Morales Durand <hernan.morales@gmail.com> wrote:

Yes, sorry I forgot that. Pharo 3.0 clean image Latest update: #30850, on Windows 8 The VM is the one downloaded when you do

$ wget -O- get.pharo.org/30+vm | bash

Then you open and press F2, Display version information, CogVM 4.0.0 from May 15 2014.

Script to reproduce it:

Smalltalk garbageCollect. [ | matrix rows cols tree | rows := 10000. cols := 1000. matrix := Matrix rows: rows columns: cols. 1 to: rows do: [ : r | 1 to: cols do: [ : c | matrix at: r at: c put: SmallInteger maxVal atRandom ] ].

tree := TreeModel new. tree columns: ( (1 to: cols) collect: [ : col | TreeColumnModel new displayBlock: [ : node | (node content at: col) asString ]; headerLabel: col asString ]). tree roots: ((1 to: rows) collect: [ : nrow | matrix atRow: nrow ]). tree openWithSpec ] timeToRun

Hernán

2014-06-26 2:48 GMT-03:00 stepharo <stepharo@free.fr>: Hi hernan

Which image? What did you loaded? Can you reproduce it?

Can someone explain what does it mean or why it happens? Is that a common scenario for you?

I am measuring execution time for big matrices in CogVM 4.0.0. Image is unresponsive.

Cheers,

Hernán

you are basically creating 1000 * 100000 morphs (and complex ones). I would just do a matrix morph with just one morph and rendering the matrix in the canvas (overriding the #drawOn:) BTW, I do not think VW would work like that either: IMO, that design (pre-generating the cells) is bad and it never works. Other frameworks use a datasource design (like cocoa, swt… and basically all the serious frameworks I know about). and no, we do not have a default design for this kind of big components (a serious absence, IMO). Esteban On 26 Jun 2014, at 10:00, Hernán Morales Durand <hernan.morales@gmail.com> wrote:

Why not? Do you know a better grid morph?

I have tested several ones but there is no way to visualize big matrices in Pharo (I am avoiding to switch to VisualWorks for now).

Cheers,

Hernán

2014-06-26 9:51 GMT-03:00 Esteban Lorenzano <estebanlm@gmail.com>: he, you are trying to open a tree with 1000 columns and 10000 rows. that will never work, not like that.

Esteban

On 26 Jun 2014, at 09:45, Hernán Morales Durand <hernan.morales@gmail.com> wrote:

...

Yes, sorry I forgot that. Pharo 3.0 clean image Latest update: #30850, on Windows 8 The VM is the one downloaded when you do

$ wget -O- get.pharo.org/30+vm | bash

Then you open and press F2, Display version information, CogVM 4.0.0 from May 15 2014.

Script to reproduce it:

Smalltalk garbageCollect. [ | matrix rows cols tree | rows := 10000. cols := 1000. matrix := Matrix rows: rows columns: cols. 1 to: rows do: [ : r | 1 to: cols do: [ : c | matrix at: r at: c put: SmallInteger maxVal atRandom ] ].

tree := TreeModel new. tree columns: ( (1 to: cols) collect: [ : col | TreeColumnModel new displayBlock: [ : node | (node content at: col) asString ]; headerLabel: col asString ]). tree roots: ((1 to: rows) collect: [ : nrow | matrix atRow: nrow ]). tree openWithSpec ] timeToRun

Hernán

2014-06-26 2:48 GMT-03:00 stepharo <stepharo@free.fr>: Hi hernan

Which image? What did you loaded? Can you reproduce it?

Can someone explain what does it mean or why it happens? Is that a common scenario for you?

I am measuring execution time for big matrices in CogVM 4.0.0. Image is unresponsive.

Cheers,

Hernán

2014-06-26 10:09 GMT-03:00 Esteban Lorenzano <estebanlm@gmail.com>:

you are basically creating 1000 * 100000 morphs (and complex ones).

Actually, I want to create about 20 million of rows.

I would just do a matrix morph with just one morph and rendering the matrix in the canvas (overriding the #drawOn:)

Yes, that seems to be the path.

BTW, I do not think VW would work like that either: IMO, that design (pre-generating the cells) is bad and it never works. Other frameworks use a datasource design (like cocoa, swt… and basically all the serious frameworks I know about). and no, we do not have a default design for this kind of big components (a serious absence, IMO).

Do you have an example of those frameworks displaying millions of rows? How they manage scrolling? Thanks for the tips. Hernán

On 26 Jun 2014, at 15:39, Hernán Morales Durand <hernan.morales@gmail.com> wrote:

2014-06-26 10:09 GMT-03:00 Esteban Lorenzano <estebanlm@gmail.com>: you are basically creating 1000 * 100000 morphs (and complex ones).

Actually, I want to create about 20 million of rows.

I would just do a matrix morph with just one morph and rendering the matrix in the canvas (overriding the #drawOn:)

Yes, that seems to be the path.

BTW, I do not think VW would work like that either: IMO, that design (pre-generating the cells) is bad and it never works. Other frameworks use a datasource design (like cocoa, swt… and basically all the serious frameworks I know about). and no, we do not have a default design for this kind of big components (a serious absence, IMO).

Do you have an example of those frameworks displaying millions of rows? How they manage scrolling? Thanks for the tips.

https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Applic... (and around) now… how it is implemented, I always take cocotron project (http://www.cocotron.org) as an inspiration (even if in ObjC, you can take a lot of ideas from there) Esteban

Hernán