8000 convert.im6: WriteBlob Failed @ error/png.c/MagickPNGErrorHandler/1728. · Issue #7 · szagoruyko/cifar.torch · GitHub
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convert.im6: WriteBlob Failed @ error/png.c/MagickPNGErrorHandler/1728. #7

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PraveerSINGH opened this issue Sep 11, 2015 · 3 comments
Open

convert.im6: WriteBlob Failed @ error/png.c/MagickPNGErrorHandler/1728. #7

PraveerSINGH opened this issue Sep 11, 2015 · 3 comments

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@PraveerSINGH
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Hey Sergey,

I recently upgraded my cuda (7.5) and the driver (352.39) along with other system and torch updates.
However since then the imagemagick toolbox is prompting up with this error when it tries to convert the eps file to png.

convert.im6: WriteBlob Failed `/home/praveer/cifar/logs/test.png' @ error/png.c/MagickPNGErrorHandler/1728.
/home/praveer/cifar/logs/test.png: No such file or directory

I have tried out running convert from the terminal and it works fine.
I have also tried setting the chmod permission to 777 for the directory but nonetheless it has no effect.
The imagemagick is upgraded to its latest version.

Cheers !!!
Praveer
@szagoruyko
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Hi Praveer, it seems to me that this is just a warning on the first epoch and is fine after

@PraveerSINGH
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it used to be like that previously.
but after the up-gradation it happens for all the epochs.

@fredowski
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Hi,

this problem of non existance of the test.log.eps and as a result missing png e.t.c, resulted int he following stop of the execution:

==> setting criterion   
==> configuring optimizer   
==> online epoch # 1 [batchSize = 128]  
 [==================== 390/390 ================>]  Tot: 52m28s | Step: 8s62ms   
Train accuracy: 11.65 %  time: 3156.72 s    
==> testing 
Test accuracy:  11.04   
convert: unable to open image `logs/test.log.eps': No such file or directory @ error/blob.c/OpenBlob/2702.
convert: no images defined `logs/test.png' @ error/convert.c/ConvertImageCommand/3257.
logs/test.png: No such file or directory
140735318610000:error:02001002:system library:fopen:No such file or directory:bss_file.c:398:fopen('logs/test.png','r')
140735318610000:error:20074002:BIO routines:FILE_CTRL:system lib:bss_file.c:400:
/Users/fritz/torch/install/bin/lua: train.lua:186: bad argument #3 to 'format' (string expected, got nil)
stack traceback:
    [C]: in function 'format'
    train.lua:186: in function 'test'
    train.lua:212: in main chunk
    [C]: in function 'dofile'
    .../torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:145: in main chunk
    [C]: ?
FriedrichsMacBook:cifar.torch fritz$ cd logs/
FriedrichsMacBook:logs fritz$ ls
report.html test.log

See pull request #18 5AB3

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@fredowski @szagoruyko @PraveerSINGH
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