diff options
Diffstat (limited to 'Source/CTest/cmCTestBinPacker.cxx')
-rw-r--r-- | Source/CTest/cmCTestBinPacker.cxx | 132 |
1 files changed, 67 insertions, 65 deletions
diff --git a/Source/CTest/cmCTestBinPacker.cxx b/Source/CTest/cmCTestBinPacker.cxx index e9e3bee..e21b14d 100644 --- a/Source/CTest/cmCTestBinPacker.cxx +++ b/Source/CTest/cmCTestBinPacker.cxx @@ -23,7 +23,7 @@ namespace { /* * The following algorithm is used to do two things: * - * 1) Determine if a test's hardware requirements can fit within the hardware + * 1) Determine if a test's resource requirements can fit within the resources * present on the system, and * 2) Do the actual allocation * @@ -34,46 +34,46 @@ namespace { * more combinations can be tried. */ template <typename AllocationStrategy> -static bool AllocateCTestHardware( - const std::map<std::string, cmCTestHardwareAllocator::Resource>& hardware, - const std::vector<std::string>& hardwareSorted, std::size_t currentIndex, +static bool AllocateCTestResources( + const std::map<std::string, cmCTestResourceAllocator::Resource>& resources, + const std::vector<std::string>& resourcesSorted, std::size_t currentIndex, std::vector<cmCTestBinPackerAllocation*>& allocations) { // Iterate through all large enough resources until we find a solution - std::size_t hardwareIndex = 0; - while (hardwareIndex < hardwareSorted.size()) { - auto const& resource = hardware.at(hardwareSorted[hardwareIndex]); + std::size_t resourceIndex = 0; + while (resourceIndex < resourcesSorted.size()) { + auto const& resource = resources.at(resourcesSorted[resourceIndex]); if (resource.Free() >= static_cast<unsigned int>(allocations[currentIndex]->SlotsNeeded)) { // Preemptively allocate the resource - allocations[currentIndex]->Id = hardwareSorted[hardwareIndex]; + allocations[currentIndex]->Id = resourcesSorted[resourceIndex]; if (currentIndex + 1 >= allocations.size()) { // We have a solution return true; } // Move the resource up the list until it is sorted again - auto hardware2 = hardware; - auto hardwareSorted2 = hardwareSorted; - hardware2[hardwareSorted2[hardwareIndex]].Locked += + auto resources2 = resources; + auto resourcesSorted2 = resourcesSorted; + resources2[resourcesSorted2[resourceIndex]].Locked += allocations[currentIndex]->SlotsNeeded; - AllocationStrategy::IncrementalSort(hardware2, hardwareSorted2, - hardwareIndex); + AllocationStrategy::IncrementalSort(resources2, resourcesSorted2, + resourceIndex); // Recurse one level deeper - if (AllocateCTestHardware<AllocationStrategy>( - hardware2, hardwareSorted2, currentIndex + 1, allocations)) { + if (AllocateCTestResources<AllocationStrategy>( + resources2, resourcesSorted2, currentIndex + 1, allocations)) { return true; } } // No solution found here, deallocate the resource and try the next one allocations[currentIndex]->Id.clear(); - auto freeSlots = hardware.at(hardwareSorted.at(hardwareIndex)).Free(); + auto freeSlots = resources.at(resourcesSorted.at(resourceIndex)).Free(); do { - ++hardwareIndex; - } while (hardwareIndex < hardwareSorted.size() && - hardware.at(hardwareSorted.at(hardwareIndex)).Free() == + ++resourceIndex; + } while (resourceIndex < resourcesSorted.size() && + resources.at(resourcesSorted.at(resourceIndex)).Free() == freeSlots); } @@ -82,8 +82,8 @@ static bool AllocateCTestHardware( } template <typename AllocationStrategy> -static bool AllocateCTestHardware( - const std::map<std::string, cmCTestHardwareAllocator::Resource>& hardware, +static bool AllocateCTestResources( + const std::map<std::string, cmCTestResourceAllocator::Resource>& resources, std::vector<cmCTestBinPackerAllocation>& allocations) { // Sort the resource requirements in descending order by slots needed @@ -99,103 +99,105 @@ static bool AllocateCTestHardware( }); // Sort the resources according to sort strategy - std::vector<std::string> hardwareSorted; - hardwareSorted.reserve(hardware.size()); - for (auto const& hw : hardware) { - hardwareSorted.push_back(hw.first); + std::vector<std::string> resourcesSorted; + resourcesSorted.reserve(resources.size()); + for (auto const& res : resources) { + resourcesSorted.push_back(res.first); } - AllocationStrategy::InitialSort(hardware, hardwareSorted); + AllocationStrategy::InitialSort(resources, resourcesSorted); // Do the actual allocation - return AllocateCTestHardware<AllocationStrategy>( - hardware, hardwareSorted, std::size_t(0), allocationsPtr); + return AllocateCTestResources<AllocationStrategy>( + resources, resourcesSorted, std::size_t(0), allocationsPtr); } class RoundRobinAllocationStrategy { public: static void InitialSort( - const std::map<std::string, cmCTestHardwareAllocator::Resource>& hardware, - std::vector<std::string>& hardwareSorted); + const std::map<std::string, cmCTestResourceAllocator::Resource>& resources, + std::vector<std::string>& resourcesSorted); static void IncrementalSort( - const std::map<std::string, cmCTestHardwareAllocator::Resource>& hardware, - std::vector<std::string>& hardwareSorted, std::size_t lastAllocatedIndex); + const std::map<std::string, cmCTestResourceAllocator::Resource>& resources, + std::vector<std::string>& resourcesSorted, std::size_t lastAllocatedIndex); }; void RoundRobinAllocationStrategy::InitialSort( - const std::map<std::string, cmCTestHardwareAllocator::Resource>& hardware, - std::vector<std::string>& hardwareSorted) + const std::map<std::string, cmCTestResourceAllocator::Resource>& resources, + std::vector<std::string>& resourcesSorted) { std::stable_sort( - hardwareSorted.rbegin(), hardwareSorted.rend(), - [&hardware](const std::string& id1, const std::string& id2) { - return hardware.at(id1).Free() < hardware.at(id2).Free(); + resourcesSorted.rbegin(), resourcesSorted.rend(), + [&resources](const std::string& id1, const std::string& id2) { + return resources.at(id1).Free() < resources.at(id2).Free(); }); } void RoundRobinAllocationStrategy::IncrementalSort( - const std::map<std::string, cmCTestHardwareAllocator::Resource>& hardware, - std::vector<std::string>& hardwareSorted, std::size_t lastAllocatedIndex) + const std::map<std::string, cmCTestResourceAllocator::Resource>& resources, + std::vector<std::string>& resourcesSorted, std::size_t lastAllocatedIndex) { - auto tmp = hardwareSorted[lastAllocatedIndex]; + auto tmp = resourcesSorted[lastAllocatedIndex]; std::size_t i = lastAllocatedIndex; - while (i < hardwareSorted.size() - 1 && - hardware.at(hardwareSorted[i + 1]).Free() > hardware.at(tmp).Free()) { - hardwareSorted[i] = hardwareSorted[i + 1]; + while (i < resourcesSorted.size() - 1 && + resources.at(resourcesSorted[i + 1]).Free() > + resources.at(tmp).Free()) { + resourcesSorted[i] = resourcesSorted[i + 1]; ++i; } - hardwareSorted[i] = tmp; + resourcesSorted[i] = tmp; } class BlockAllocationStrategy { public: static void InitialSort( - const std::map<std::string, cmCTestHardwareAllocator::Resource>& hardware, - std::vector<std::string>& hardwareSorted); + const std::map<std::string, cmCTestResourceAllocator::Resource>& resources, + std::vector<std::string>& resourcesSorted); static void IncrementalSort( - const std::map<std::string, cmCTestHardwareAllocator::Resource>& hardware, - std::vector<std::string>& hardwareSorted, std::size_t lastAllocatedIndex); + const std::map<std::string, cmCTestResourceAllocator::Resource>& resources, + std::vector<std::string>& resourcesSorted, std::size_t lastAllocatedIndex); }; void BlockAllocationStrategy::InitialSort( - const std::map<std::string, cmCTestHardwareAllocator::Resource>& hardware, - std::vector<std::string>& hardwareSorted) + const std::map<std::string, cmCTestResourceAllocator::Resource>& resources, + std::vector<std::string>& resourcesSorted) { std::stable_sort( - hardwareSorted.rbegin(), hardwareSorted.rend(), - [&hardware](const std::string& id1, const std::string& id2) { - return hardware.at(id1).Free() < hardware.at(id2).Free(); + resourcesSorted.rbegin(), resourcesSorted.rend(), + [&resources](const std::string& id1, const std::string& id2) { + return resources.at(id1).Free() < resources.at(id2).Free(); }); } void BlockAllocationStrategy::IncrementalSort( - const std::map<std::string, cmCTestHardwareAllocator::Resource>&, - std::vector<std::string>& hardwareSorted, std::size_t lastAllocatedIndex) + const std::map<std::string, cmCTestResourceAllocator::Resource>&, + std::vector<std::string>& resourcesSorted, std::size_t lastAllocatedIndex) { - auto tmp = hardwareSorted[lastAllocatedIndex]; + auto tmp = resourcesSorted[lastAllocatedIndex]; std::size_t i = lastAllocatedIndex; while (i > 0) { - hardwareSorted[i] = hardwareSorted[i - 1]; + resourcesSorted[i] = resourcesSorted[i - 1]; --i; } - hardwareSorted[i] = tmp; + resourcesSorted[i] = tmp; } } -bool cmAllocateCTestHardwareRoundRobin( - const std::map<std::string, cmCTestHardwareAllocator::Resource>& hardware, +bool cmAllocateCTestResourcesRoundRobin( + const std::map<std::string, cmCTestResourceAllocator::Resource>& resources, std::vector<cmCTestBinPackerAllocation>& allocations) { - return AllocateCTestHardware<RoundRobinAllocationStrategy>(hardware, - allocations); + return AllocateCTestResources<RoundRobinAllocationStrategy>(resources, + allocations); } -bool cmAllocateCTestHardwareBlock( - const std::map<std::string, cmCTestHardwareAllocator::Resource>& hardware, +bool cmAllocateCTestResourcesBlock( + const std::map<std::string, cmCTestResourceAllocator::Resource>& resources, std::vector<cmCTestBinPackerAllocation>& allocations) { - return AllocateCTestHardware<BlockAllocationStrategy>(hardware, allocations); + return AllocateCTestResources<BlockAllocationStrategy>(resources, + allocations); } |