Examples with ServerRow com.tencent.angel.ps.impl.matrix.ServerRow used on opensource projects

Example 11 with ServerRow

use of com.tencent.angel.ps.impl.matrix.ServerRow in project angel by Tencent.

the class MMUpdateFunc method partitionUpdate.

@Override
public void partitionUpdate(PartitionUpdateParam partParam) {
    ServerPartition part = psContext.getMatrixStorageManager().getPart(partParam.getMatrixId(), partParam.getPartKey().getPartitionId());
    if (part != null) {
        MMUpdateParam.MMPartitionUpdateParam vs2 = (MMUpdateParam.MMPartitionUpdateParam) partParam;
        int[] rowIds = vs2.getRowIds();
        ServerRow[] rows = new ServerRow[rowIds.length];
        for (int i = 0; i < rowIds.length; i++) {
            rows[i] = part.getRow(rowIds[i]);
        }
        update(rows, vs2.getScalars());
    }
}

Example 12 with ServerRow

use of com.tencent.angel.ps.impl.matrix.ServerRow in project angel by Tencent.

the class MatrixClientAdapter method getRow.

/**
 * Get a matrix row from parameter servers
 *
 * @param matrixId matrix id
 * @param rowIndex row index
 * @param clock    clock value
 * @return TVector matrix row
 * @throws ExecutionException   exception thrown when attempting to retrieve the result of a task
 *                              that aborted by throwing an exception
 * @throws InterruptedException interrupted while wait the result
 */
public TVector getRow(int matrixId, int rowIndex, int clock) throws InterruptedException, ExecutionException {
    LOG.debug("start to getRow request, matrix=" + matrixId + ", rowIndex=" + rowIndex + ", clock=" + clock);
    long startTs = System.currentTimeMillis();
    // Wait until the clock value of this row is greater than or equal to the value
    PSAgentContext.get().getConsistencyController().waitForClock(matrixId, rowIndex, clock);
    LOG.debug("getRow wait clock time=" + (System.currentTimeMillis() - startTs));
    startTs = System.currentTimeMillis();
    // Get partitions for this row
    List<PartitionKey> partList = PSAgentContext.get().getMatrixMetaManager().getPartitions(matrixId, rowIndex);
    GetRowRequest request = new GetRowRequest(matrixId, rowIndex, clock);
    MatrixMeta meta = PSAgentContext.get().getMatrixMetaManager().getMatrixMeta(matrixId);
    GetRowPipelineCache responseCache = (GetRowPipelineCache) requestToResponseMap.get(request);
    if (responseCache == null) {
        responseCache = new GetRowPipelineCache(partList.size(), meta.getRowType());
        GetRowPipelineCache oldCache = (GetRowPipelineCache) requestToResponseMap.putIfAbsent(request, responseCache);
        if (oldCache != null) {
            responseCache = oldCache;
        }
    }
    // First get this row from matrix storage
    MatrixStorage matrixStorage = PSAgentContext.get().getMatrixStorageManager().getMatrixStoage(matrixId);
    try {
        responseCache.getDistinctLock().lock();
        // If the row exists in the matrix storage and the clock value meets the requirements, just
        // return
        TVector row = matrixStorage.getRow(rowIndex);
        if (row != null && row.getClock() >= clock) {
            return row;
        }
        // Get row splits of this row from the matrix cache first
        MatricesCache matricesCache = PSAgentContext.get().getMatricesCache();
        MatrixTransportClient matrixClient = PSAgentContext.get().getMatrixTransportClient();
        int size = partList.size();
        for (int i = 0; i < size; i++) {
            ServerRow rowSplit = matricesCache.getRowSplit(matrixId, partList.get(i), rowIndex);
            if (rowSplit != null && rowSplit.getClock() >= clock) {
                responseCache.addRowSplit(rowSplit);
            } else {
                // If the row split does not exist in cache, get it from parameter server
                responseCache.addRowSplit(matrixClient.getRowSplit(partList.get(i), rowIndex, clock));
            }
        }
        // Wait the final result
        row = responseCache.getMergedResult().get();
        LOG.debug("get row use time=" + (System.currentTimeMillis() - startTs));
        // Put it to the matrix cache
        matrixStorage.addRow(rowIndex, row);
        return row;
    } finally {
        responseCache.getDistinctLock().unlock();
        requestToResponseMap.remove(request);
    }
}