Caffe-terminate called after throwing an instance of 'std::bad_alloc' while building a Cat/Dog Classifier using a Convolutional Neural Network

Question

I am following this tutorial to build cat-dog classifier using caffe. But while training I got this error; why?

please do not post screen shots - copy-paste the run log and error message. Search engines cannot index screenshots. — Shai, Nov 28 '18 at 12:55

score 0 · Accepted Answer · answered Nov 28 '18 at 13:00

0

The error you got "std::bad_alloc" usually refers to CPU memory allocation: you are out of memory.
Judging by the stack trace, you got the error when trying to read an element from the LMDB file. You need to check your LMDB: is it possible you store HUGE images there? is it possible the LMDB is corrupt? can you read it with different software?

answered Nov 28 '18 at 13:00

Shai

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thank you for your reply, in train_lmdb I have stored 23000 images and there are data.mdb and lock.mdb both are 8.2kB in size. how can I read it with different software? which software I can use for it? @Shai – EverythingNeedToBeKnown Nov 29 '18 at 04:02
@Cham (1) it does not make sense that lmdb stores 23K images in only 8.2kB. (2) you can use [this example](https://stackoverflow.com/a/33123313/1714410) to scan your lmdb – Shai Nov 29 '18 at 07:20
(1) yeah, I thought about it. (2) I'll check this one @Shai – EverythingNeedToBeKnown Nov 29 '18 at 07:32
when run that script it doesn't print any. Doesn't give any error. But under problems it says "Datum has no data member" @Shai – EverythingNeedToBeKnown Nov 29 '18 at 07:46
@Cham how did you construct your lmdb? it seems like it is corrupted. the entries have only "label" but no image? – Shai Nov 29 '18 at 07:49
[link] (https://github.com/adilmoujahid/deeplearning-cats-dogs-tutorial/blob/master/code/create_lmdb.py) this is used @Shai – EverythingNeedToBeKnown Nov 29 '18 at 08:36
@Cham I guess you'll have to debug it. did you get any error/warning messages when you created the lmdb? – Shai Nov 29 '18 at 08:42
no nothing, they were created nicely without showing any error messages @Sham – EverythingNeedToBeKnown Nov 29 '18 at 08:46
@Sham use a debuger to check the creation of your lmdb: i suspect there were no imagefiles found at all and you basically have an empty dataset. – Shai Nov 29 '18 at 08:52
I debugged, doesn't show any error. I followed above mentioned tutorial, still can't think what happened. @Shai – EverythingNeedToBeKnown Nov 29 '18 at 09:11
Though I installed opencv and import it, always show below messages; Module cv2 has no '...' member . Is this affect this problem? @Shai – EverythingNeedToBeKnown Nov 29 '18 at 09:16

Caffe-terminate called after throwing an instance of 'std::bad_alloc' while building a Cat/Dog Classifier using a Convolutional Neural Network

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