Impala Documentation

VirtualMatrix* Impala::Core::Training::PrecomputeTask::GetWritableMatrix	(	int	nrRow,
		int	nrCol
	)			`[inline]`

Definition at line 250 of file PrecomputeTask.h.

References Impala::Persistency::KernelMatrixRepository::ExposeFilePath(), Impala::FileNameBase(), Impala::FileNamePath(), Impala::Core::Feature::VirtualFeatureTableFactory::GetInstance(), Impala::Core::Feature::VirtualFeatureTableIOBufferWriter::GetMatrix(), ILOG_ERROR, mComputingTestKernel, mMatrix, mThisKerLoc, mWriter, and Impala::Persistency::RepositoryGetFile().

00251     {
00252         typedef Core::Matrix::VirtualMatrixFactory VMFactory;
00253         using Persistency::RepositoryGetFile;
00254 
00255         String path = KernelMatrixRepository().ExposeFilePath(mThisKerLoc, true);
00256         if (path.empty())
00257         {
00258             ILOG_ERROR("Couldn't get writable file for kernel " << mThisKerLoc);
00259             return 0;
00260         }
00261         String suffix = (mComputingTestKernel) ? ".tab"
00262                                                : ".precomputed.part-R0-C0.raw";
00263         String fName = FileNamePath(path) + FileNameBase(path) + suffix;
00264         Persistency::FileLocator fileLoc(mThisKerLoc, fName);
00265         File file = RepositoryGetFile(fileLoc, true, false);
00266         if (mComputingTestKernel)
00267         {
00268             mWriter = VFTFactory::GetInstance().ConstructIOBufferWriter
00269                                              (nrRow, nrCol, file, false);
00270             return mWriter->GetMatrix();
00271         }
00272         else
00273         {
00274             mMatrix = VMFactory::GetInstance().ConstructIOBufferWriter
00275                                              (nrRow, nrCol, file, true, true);
00276             return mMatrix;
00277         }
00278     }

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