On 3/26/2016 1:11 AM, Radhakrishnan CV wrote:
On Sat, Mar 26, 2016 at 3:23 AM, Nasser M. Abbasi <n...@12000.org> wrote:
[...]
For example, for one file, using Vbox, it took 14 hrs
for make4ht to compile the file to html. On cygwin, it took
little less than than. About 10 hrs. This is on windows 7, 64 bit
16 GB ram, fast intel i7-3930k CPU.
That is terrible! But, it contradicts with my own experience. At work, we
do large documents (on an average 300 pages long, 800-1000 bibliographic
items, 500 to 800 equations, very complex math, large number of figures,
double column output) on a daily basis, but it takes a few seconds to
generate Elsevier XML output. Recently, another article with 350 pages, ~70
figures, four or five very long tables each spanning several pages, 350 bib
items, several hundred cross references, but very few math, took only 12
secs for three runs of TeX4ht to generate NLM XML output on a server where
at least 50 users are working simultaneously using same resources. The only
documents that take, say, 60 secs or a bit more time are documents with
atomic and nuclear data tables, each table running to 200 pages typically!
Otherwise, tex4ht run is a breeze in my experience that too on a server
shared by at least forty to fifty users at a time.
[...]
But the issue is, pdflatex and lualatex take about 5 minutes
on the same file to compile it to pdf !
I can understand converting to HTML will take more time,
since each equation is converted to svg image,
on the fly? Why don't you write out the math in a file and process
separately to generate the svg images in one go?
Sorry, I do not understand what this mean. I have latex
file, which contains math, and then call tex4ht to
generate the HTML. I use make4ht to compile it and tell
it to use svg for math.
[...]
It also seems tex4ht has more than one pass. As I see it
generating these sequence of numbers more than one time.
tex4ht needs three passes for fixing cross links and multicolumns in
tables.
Ok. But each pass is slow., as is seems to go through
the whole pages over and over again.
I can make a zip file with typical large latex file
with all the images it uses and my .cfg and main.mk4
and the command I used to compile the latex file if
any one wants to confirm this problem. Would this be ok?
I would love to debug your problem. Please do send me. If it is too large
the archive, kindly put at some location and provide me the URL.
Thanks for the offer to look into it. I put the latex file
and all the needed include files I use and the .cfg and main.mk
and the command in one zip file. Here it is, in this folder:
http://12000.org/tmp/032616/
There is file call compile.sh which has this line:
make4ht --lua -u -c ./nma.cfg -e ./main.mk4 report.tex "htm,3,pic-align,notoc*"
THe report.tex there is 17 MB large. You'll see the slow down
as it pages get to over [1000]... etc.. it will take few hours
to compile.
Please let me know if you need anything else or anything
I can try on my end. I made sure all the file needed there.
If I missed something, will update.
[...]
Finally, is there a document that describes the passes/process
that tex4ht uses to compile to HTML at some high level? Like block
diagram, or such. I am not able to find such design document.
A schematic diagram of a tex4ht run namely tex4ht.pdf is attached to this
mail. Hope this might help.
Thanks for the diagram. But there should really be a more
detailed design document for tex4ht. For something as
important as tex4ht.
Best regards
thank you,
--Nasser
