FBPCS (Facebook Private Computation Solutions) leverages secure multi-party computation (MPC) to output aggregated data without making unencrypted, readable data available to the other party or any third parties. Facebook provides impression & opportunity data, and the advertiser provides conversion / outcome data.
License: MIT License
Private Computation Solutions provides multiple solutions that leverage various Privacy Enhancing Technologies (e.g., multi-party computation, differential privacy) used across Measurement and Signals. The existing solutions includes Private Lift and Private Attribution, which allow calculations of Lift and Attribution metrics without revealing opportunity or conversion data on an individual level through 2PC.
PCS is MIT licensed, as found in the LICENSE file.
Hello,
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Thank you.
Hello Facebook team,
I am attempting to run the unit tests within the repo using CLion IDE. To be more specific, I am trying to setting up pcf2's unit tests by extending the CMakeLists.txt file under fbpcs/docker/emp_games. Currently, I can successfully load CMakeLists.txt but keep having a linker error below. My understanding is the complier complains about the missing dependency of folly package within the fbpcf.
====================[ Build | pcf2_attribution_calculator_test | Debug - pcs ]====
/usr/bin/cmake --build /root/snap-int-fbpcs/cmake-build-debug---pcs --target pcf2_attribution_calculator_test -- -j 8
[ 13%] Built target empgamecommon
[ 33%] Built target gtest
[ 40%] Built target perftools
[ 53%] Built target gtest_main
[ 60%] Linking CXX executable bin/pcf2_attribution_calculator_test
/usr/bin/ld: /usr/local/lib/libfbpcf.a(S3Util.cpp.o): in function `fbpcf::aws::uriToObjectReference(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
S3Util.cpp:(.text+0x87d): undefined reference to `folly::Uri::Uri(folly::Range<char const*>)'
/usr/bin/ld: /usr/local/lib/libfbpcf.a(GCSUtil.cpp.o): in function `fbpcf::gcp::uriToObjectReference(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
GCSUtil.cpp:(.text+0x1dd): undefined reference to `folly::Uri::Uri(folly::Range<char const*>)'
/usr/bin/ld: CMakeFiles/pcf2_attribution_calculator_test.dir/fbpcs/emp_games/pcf2_attribution/test/AttributionAppTest.cpp.o: in function `pcf2_attribution::verifyOutput(pcf2_attribution::AttributionOutputMetrics, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
/root/snap-int-fbpcs/fbpcs/emp_games/pcf2_attribution/test/AttributionTestUtils.h:31: undefined reference to `folly::compareJson(folly::Range<char const*>, folly::Range<char const*>)'
collect2: error: ld returned 1 exit status
make[3]: *** [CMakeFiles/pcf2_attribution_calculator_test.dir/build.make:222: bin/pcf2_attribution_calculator_test] Error 1
make[2]: *** [CMakeFiles/Makefile2:226: CMakeFiles/pcf2_attribution_calculator_test.dir/all] Error 2
make[1]: *** [CMakeFiles/Makefile2:233: CMakeFiles/pcf2_attribution_calculator_test.dir/rule] Error 2
make: *** [Makefile:201: pcf2_attribution_calculator_test] Error 2
However, when I looked over this website and double-checked the common.cmake within the fbpcs repo, I believe the folly package has been already included in the common cmake. Furthermore, since the CMakeLists.txt I am using now has already include("common.cmake"), the Uri should have been included. Please feel free to correct me if I am wrong.
I also try copying the following block of code into the CMakeLists.txt but the same linker error still show up:
find_package(folly REQUIRED)
set_and_check(FOLLY_INCLUDE_DIR /usr/local/include/folly)
set_and_check(FOLLY_CMAKE_DIR /usr/local/lib/cmake/folly)
if(NOT TARGET Folly::folly)
include("${FOLLY_CMAKE_DIR}/folly-targets.cmake")
endif()
if(NOT folly_FIND_QUIETLY)
message(STATUS "Found folly: ${PACKAGE_PREFIX_DIR}")
endif()
The following represents my sample code for building a gtest target:
# Test - pcf2_aggregation_test
file(GLOB pcf2_aggregation_test_src
"fbpcs/emp_games/pcf2_aggregation/**.h"
"fbpcs/emp_games/pcf2_aggregation/**.cpp"
"fbpcs/emp_games/pcf2_aggregation/test/**.h"
"fbpcs/emp_games/pcf2_aggregation/test/**.cpp"
"fbpcs/emp_games/common/TestUtil.**"
)
add_executable(
pcf2_aggregation_calculator_test
${pcf2_aggregation_test_src})
target_link_libraries(
pcf2_aggregation_calculator_test
empgamecommon
perftools
gtest_main
Folly:folly
)
install(TARGETS pcf2_aggregation_calculator_test DESTINATION bin)
Could you please share any advice with me on how to proceed with setting up unit tests? Many thanks in advance!
Context:
CMakeLists.txt file under fbpcs/docker/emp_games to the root directory and then try extending files upon that.fbpcf repo under the same directory as fbpcs.Best regards,
Hokssey
We should update the naming from "Facebook Private Computation Solutions" to "Meta Private Computation Solutions" and all the places in the documentation where we use that.
in the readme file under "emp-games" the following paragraph exists
Note: At this time, FB does not allow docker builds on FB devservers. In order to build emp_games docker image(s) you will need to either clone fbcode locally to a docker capable machine (your laptop) or at a minimum copy the "emp_games" folder to a machine to a capable of using docker.
It seems very specific to FB employees. Wondering if it make sense to put it elsewhere instead of exposing it to the public github.
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