Note that if you're running out of memory due to parallel CUDA builds
(which can VERY easily happen), you can enable
WITH_CYCLES_CUDA_BUILD_SERIAL to force the kernels to be built one at a
time.
On 2/28/20 1:16 PM, bju...@ymail.com wrote:
Cuda Issue?
I just got through an issue compiling blender. It was freezing my machine
compiling the cuda kernel code on a 12gb laptop.
I tried running make from the kernel subdirectory and it made it through using
1 thread.
JJ
On February 28, 2020 2:16:02 AM MST, Bastien Montagne <montagn...@wanadoo.fr>
wrote:
There's also another solution, using ninja builder instead of make one
(ninja should be easy to install from your distro's packages).
Once installed, you need to generate a CMake build, specifying ninja as
builder (instead of the default, make option), and enabling
WITH_NINJA_POOL_JOBS:
cd my/new/builddir
cmake -G Ninja -D WITH_NINJA_POOL_JOBS=ON path/to/blender/source
You can then try to build and see if that works. If not, you can try to
tweak the NINJA_MAX_NUM_PARALLEL_ options (e.g. set _LINK_JOBS and
_COMPILE_HEAVY_JOBS to 1).
Those options try to be smart be enabling optimal parallelization for
regular compile tasks, while enforcing heavy ones (and linking, which
also eats a lot of RAM) to only run one at a time.
As a side note, it would indeed be interesting to know which module
actually fails to build with 8GB.
Cheers,
Bastien
On 28/02/2020 09:58, Brecht Van Lommel wrote:
There's a few possible solutions:
* Enable WITH_CYCLES_NATIVE_ONLY and disable
WITH_LIBMV_SCHUR_SPECIALIZATIONS
* If it's running out of memory building a particular module, you can
disable that module in CMake (e.g. WITH_MOD_FLUID, ...). It would be
interesting to know which one.
* As a last resort, you can build with fewer threads.
On Fri, Feb 28, 2020 at 9:48 AM Deep
Majumder<deep.majumder2...@gmail.com>
wrote:
Hello everyone,
I am trying to build Blender (from its source on Git) so as to apply
for
Google Suumer of Code 2020. However, when the build process (make)
reaches
to 57%, the whole of my 8 GB RAM is consumed and my system starts
thrashing
(eventually the build process gets killed). I am using Pop OS 19.10
64-bit
(which is based on Ubuntu 19.10 Eoan Ermine 64-bit), on an Intel
Core i5
8th Gen processor, 8gb of RAM, and 4 GB of swap space on a 7200 rpm
HDD.
Is there a workaround this or do I need to buy more RAM?
Regards,
Deep
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