Re: [ceres-solver] using Ceres with Cmake

[Sameer Agarwal]

are you building in debug more or release mode?
try 
cmake -DCMAKE_BUILD_TYPE=Release

Sameer

On Mon, Jun 6, 2016 at 9:07 PM Lang Tan <jinaqi...@gmail.com> wrote:

Hi guys,

I'm just beginning to use Ceres. I have successfully installed Ceres and tried some examples. Then I try to follow the tutorial Using Ceres with Cmake.

In my project folder, there are 3 files: CMakeLists.txt,  simple_bundle_adjuster.cc (copied from Ceres),  problem-16-22106-pre.txt (Copied form Ceres)

The CMakeLists.txt :

cmake_minimum_required(VERSION 2.8)
project(simpe_ba)
find_package(Ceres REQUIRED)
include_directories(${CERES_INCLUDE_DIRS})
# 
add_executable(simple_ba helloworld.cc)
target_link_libraries(helloworld ${CERES_LIBRARIES})

But it runs very slow : 

It takes 60s to evaluate the Jacobian( When I tried this example in Ceres, it only takes about 0.4s). I can't figure out why this becomes such slow, I guess my CMakeLists.txt is just too simple, but i don't know how to improve it.

Thanks in advance.

Tan.

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[Lang Tan]

I never set it.

在 2016年6月7日星期二 UTC+8下午12:14:48，Sameer Agarwal写道：

[Sameer Agarwal]

then you are likely building in debug mode by default. Set the mode to release and I bet your code becomes fast.

To view this discussion on the web visit https://groups.google.com/d/msgid/ceres-solver/043ca4bf-dfc2-4dbb-a7e1-c564ddb2fcc9%40googlegroups.com.

[Lang Tan]

Yes, now it's blazing fast. Thanks a lot!!!!!!

在 2016年6月7日星期二 UTC+8下午12:14:48，Sameer Agarwal写道：

are you building in debug more or release mode?