ldb | A C REPL / CLI for LevelDB | Database library
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A C++ REPL / CLI for LevelDB
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Trending Discussions on ldb
QUESTION
Load 1.5 Million Records from Database 1
Load 1.5 Million Records from Database 2
...ANSWER
Answered 2021-Jun-09 at 09:58The thing is that, by default, once allocated heap memory size does not shrink (I mean the memory size allocated from the operating system). If your Java application at one time needed 2 GB of RAM it will keep that reserved from the operating system by default.
If you can, try to change the design of your application to not firstly load all data into memory, but only load what you really need to do your work.
If you really need the two big batches at the same time think about using the following Java command line argument: "-XX:+UseAdaptiveSizePolicy", which would make it possible to shrink the heap space after big memory usages.
You can also call the garbage collector via "System.gc();", but that a) does not shrink the allocated heap memory without the suggested command line argument, and b) really, you should not think about this. Java will run it on it's own by time.
Edit: Improved my first explanation a bit.
QUESTION
A friend of mine contacted me with a problem he has been having with Discord. Windows asks what program the code below should be run with and the default is Discord. Every time Discord is run, this chunk of code is run:
...ANSWER
Answered 2021-Feb-18 at 04:13that is malware, not only a token logger but also stealing Chrome, Brave, Opera and Yandex passwords. uninstall that immediately and change all your passwords
yt channel of creator: https://www.youtube.com/channel/UCydMtuzGQ0kFPhK2hIXFf6A
update: ap it turns out, it also steals your ip, yay!
QUESTION
I'm working on the CNN with one-dimensional signal. It works totally fine with CPU device. However, when I training model in GPU, CUDA error occurred. I set os.environ['CUDA_LAUNCH_BLOCKING'] = "1"
command after I got RuntimeError: CUDA error: CUBLAS_STATUS_ALLOC_FAILED
when calling cublasCreate(handle)
. With doing this, a cublasSgemm
error occurred instead of cublasCreate
error.
Though the nvidia document doubt the hardware problem, I can training other CNN with images without any error. Below is my code for the data loading and set data in training model.
ANSWER
Answered 2021-Mar-29 at 08:12With searched with the partial keywords, I finally got the similar situation. Because of the stability, I used the CUDA 10.2 version. The reference asked to upgrade CUDA toolkit to higher - 11.2 in my case - and problem solved! I've deal with other training processes but this one only caused error. As the CUDA error occurred with various reasons, changes the version could be counted for solution.
QUESTION
The following code is from BPF filters (Berkley Packet Filters). in the first line, ldh [12]
, it loads [12] something
of a packet but documentation of BPF filter
says ldh
is used to load a half word of a packet and in third line it loads [23] something
of a packet but documentation says ldb
is used to a load byte . I like to know what is 12
and 23
along with ldh
and ldb
respectively.
ANSWER
Answered 2021-Mar-18 at 08:3712 and 23 are offsets into the packet. So ldh [12]
loads a half word at offset 12 in the packet.
This is referred to as the "Addressing mode" in the documentation and, in this case, the bytecode is using the "Addressing mode 1".
QUESTION
I have similar effects and want to combine it in one but dont know how to do it
Here's my effects (I need to pass different id
depends on action type):
ANSWER
Answered 2021-Mar-01 at 15:46This can be achieved in two ways
- if you want to keep the effect generic to just set what it receives, the set headlines action can set
ldb::0
in payload as label and setTopics payload will set label same as id( or if you don't want label in setTopics you can check if label exists in effect then use label else id ) - If you don't care about it being generic, you can do something like this
QUESTION
I have a similar case of a table, Like the case of this link Update same data from the same table
but in my case it must update depending on the column "dependency". In other words, it updates the repetitions in the tables always leaving the most recent line and for table that only have one line it does not update. My data is like this:
I want it to be updated like this:
I tryed this code:
ANSWER
Answered 2021-Jan-22 at 17:30Try changing the SELECT
and WHERE
clauses:
QUESTION
I have a table that has registration of several CAR (repeated and not repeated), so I intend to update a field (active) of all repeated registrations leaving 1 more recent line.
Exemple of table data:
I want my data to be like this:
I tried to make this code, but it is not working correctly. Because updated the first row
ANSWER
Answered 2021-Jan-21 at 23:23You could just add an EXISTS
portion:
QUESTION
I'm trying to create a generic container object (done; no problem) which can be deep cloned. That means it has to deep clone its contained objects, and it's this that is causing me problems. Here's some code:
...ANSWER
Answered 2021-Jan-11 at 13:19For this to work as (I think) you expected, you should have the generic definition on the abstract class itself
QUESTION
I have the following Fortran code from https://software.intel.com/content/www/us/en/develop/documentation/mkl-tutorial-fortran/top/multiplying-matrices-using-dgemm.html
I am trying to use gfortran complile it (named as dgemm.f90
)
ANSWER
Answered 2020-Dec-14 at 06:04You should follow Intel's website to set the compiler flags for gfortran + MKL. Otherwise your will be linking with something else.
QUESTION
I wanted to test the cuda implementation of xgels provided with CUDA 11.1, and it seems I cannot make it work properly. For instance, this code seems to run just fine:
...ANSWER
Answered 2020-Dec-11 at 02:15According to my testing, if you:
Update to CUDA 11.1 Update 1 (so that
nvcc --version
reports11.1.105
)Change the
lddx
parameter to be equal ton
:
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