Message: Cannot Create data buffer

Microwave Toolbox
#1

Hello sir,

I am using sentinel-1 SLC date which is operated in IW mode during calibration I got the message, “cannot create data buffer”. While I am using high end configuration system for SAR processing i.e. 16 GB RAM with i7 processor.

Please suggest me, how to resolve this problem?

Thank You
Gaurav

#2

sometimes it helps to unzip the S1 data before importing it into SNAP. This saves some memory required for the unpacking.

#3

I already did this step

#4

I wouldn’t consider a 16Go RAM system as a high end configuration system. until you close SNAP, the memory is not free (even if not used). It means that if you are working for a long time without closing, your ram can quickly be saturated.

I still have this issue though I have 64Go. My solution is :

  • Open a terminal
  • write the “htop” command
  • If you begin to be saturated, close snap to reset memory

example of htop output (numbers are the cores/threads and Mem is your RAM
image

Also, in Tools -> Options -> Performances, you can check if all the ram of your system is allowed to be used by SNAP

#5

Can you please tell me how can I resolve this memory issue?

#6

In Options/S1TBX check the box that says “use FileCache in readers to conserve memory”. This should help somewhat.