alter_system_properties
GPUdb.alter_system_properties( property_updates_map = None, options = {} )
The alter_system_properties endpoint is primarily used to simplify the testing of GPUdb and is not expected to be used during normal execution. Commands are given through the properties_update_map whose keys are commands and values are strings representing integer values (for example '8000') or boolean values ('true' or 'false').
| Name |
Type |
Description |
|---|
| property_updates_map |
dict
of
str |
Map containing the properties of the system to be updated. Error if empty.
| Supported Parameters (keys) |
Parameter Description |
|---|
| sm_omp_threads |
Set the number of sm_omp_threads to the specified integer value. |
| kernel_omp_threads |
Set the number of kernel_omp_threads to the specified integer value. |
| concurrent_kernel_execution |
Enables concurrent kernel execution if the value is 'true' and disables it if the value is 'false'. |
| chunk_size |
Sets the chunk size of all new sets to the specified integer value. |
| flush_to_disk |
Flushes any changes to any tables to the persistent store. These changes include updates to the vector store, object store, and text search store, Value string is ignored |
| clear_cache |
Clears cached results. Useful to allow repeated timing of endpoints. Value string is ignored |
| communicator_test |
Invoke the communicator test and report timing results. Value string is is a comma separated list of <key>=<value> expressions. Expressions are: num_transactions = <num> where <num> is the number of request reply transactions to invoke per test; message_size = <bytes> where bytes is the size of the messages to send in bytes; check_values = <enabled> where if enabled is true the value of the messages received are verified. |
| set_message_timers_enabled |
Enables the communicator test to collect additional timing statistics when the value string is 'true'. Disables the collection when the value string is 'false' |
| bulk_add_test |
Invoke the bulk_add test and report timing results. Value string is ignored. |
| network_speed |
Invoke the network speed test and report timing results. Value string is a comma separated list of <key>=<value> expressions. Expressions are: seconds = <time> where time is the time in seconds to run the test; data_size = <size> where <size> is the size in bytes of the block to be transferred; threads = <number of threads>; to_ranks = <comma separated list of ranks> where the list of ranks is the ranks that rank 0 will send data to and get data from. If to_ranks is unspecified then all worker ranks are used. |
| request_timeout |
Number of minutes after which /filter/* and /aggregate/* queries will timeout. Default value is 20. The minimum allowed value is 0. The maximum allowed value is 200. |
| max_get_records_size |
set max_get_records_size. default 20000 Default value is 20000. The minimum allowed value is 0. The maximum allowed value is 1000000. |
|
| options |
dict
of
str |
Optional parameters. Default value is an empty dict ( {} ). |
| Name |
Type |
Description |
|---|
| updated_properties_map |
dict
of
str |
map of values updated, For speed
tests a map of values measured to
the measurement |