A method, apparatus, system, and computer-readable storage medium that, in an embodiment, set uncorrectable error indicators in logical memory blocks in response to detecting an uncorrectable error in memory pages associated with the logical memory blocks. An instruction execution unit contains a plurality of functional units, each capable of executing a respective instruction from the instruction word in parallel with execution of other instructions from the instruction word by other ones of the functional units. The social network application receives input from a user for sharing the business tool with other members of a social network. , distributing the outputs in the channel to other channels in response to the request. In some embodiments, computing parameters as a function of past wireless connection information in the log comprises performing genetic programming operations to generate prediction programs for later prediction of wireless access points most likely to be available for reconnection at a desired time.